The short answer: you pick a ruleset, not a realm

World of Warcraft: Forever replaces the realm-selection screen with rulesets.

You choose one before you create a character.

At launch you can pick Normal, PvP, Roleplaying or Roleplay-PvP.

Blizzard says Hardcore arrives sometime after launch.

Blizzard announced Roleplay-PvP on October 22, a week after saying it had no plans.

You can only group with players on the same ruleset.

Horde and Alliance still cannot group together.

On PvP rulesets, creating the larger faction can also be limited to keep the balance.

Since November 10, the limit weighs each region's overall PvP faction balance.

For now, Horde on NA PvP and Alliance on EU Roleplay-PvP get harder to create.

Blizzard also lowered player numbers in crowded zones, more so on PvP.

Characters cannot move freely between rulesets.

To play under another one, you create a new character there.

Starting with friends? Agree on ruleset and faction before anyone creates a character.

That is the whole realm decision.

Inside a ruleset, crowding can still move you between copies of the world.

The layering section below explains what Blizzard has said about that.

The ruleset details were first checked on 2026-09-24.

We used Blizzard's news posts, forum blue posts and Blizzard Support.

We also checked the three regional Battle.net stores.

On 2026-09-29 we re-checked the ruleset posts and added the layering section.

On 2026-10-07 we updated that section with Blizzard's October 1 Beta development notes.

On 2026-10-16 we added Blizzard's podcast answer on RP-PvP.

On 2026-10-24 we updated this guide for the new Roleplay-PvP ruleset.

On 2026-11-03 we re-checked the official posts and added faction balance.

On 2026-11-14 we added the November 10 faction change and the cut to crowded zones.

The rulesets side by side: four at launch, Hardcore later

RulesetOpen-world PvPFactions you can createAvailable
NormalAt your own discretionBothAt launch
PvPAlmost always at riskOne onlybalance limits applyAt launch
RoleplayingNot described by BlizzardBothAt launch
Roleplay-PvPAlmost always at riskNot statedbalance limits applyAt launch
HardcoreNot described by BlizzardBothAfter launchroadmap: winter

Battlegrounds may mix players from different rulesets, except Hardcore. Ruleset post (last edited 2026-10-29), launch post, tech podcast of 2026-10-29 and panel recap of 2026-09-13.

Normal lets you focus on adventuring and fighting monsters.

You fight other players only at your own discretion.

The September 13 panel recap phrases it as PvP requiring mutual consent.

PvP focuses on player-versus-player combat.

You are almost always at risk of being attacked by opposing players.

On the PvP ruleset you can only create characters for one faction.

New character creation can also be limited for a faction; the next section covers that.

Roleplaying has strict naming conventions and behavior rules.

It is for players who want to immerse themselves as a character in a fantasy world.

Blizzard's posts do not say how open-world PvP works on it.

Roleplay-PvP has the same kind of strict rules, in a world focused on PvP combat.

You are almost always at risk of being attacked by opposing characters.

Blizzard announced it on October 22 for launch.

It has the faction balance limit, but Blizzard has not said if it allows one faction only.

Official screenshot of the ruleset screen, cropped to the Roleplay PvP card with its description.
The Roleplay PvP card on the ruleset screen in Blizzard's current post (official screenshot, English client)Image: © Blizzard Entertainment · Source

Hardcore is for players who want every decision to matter.

There, death carries lasting consequences.

It is not available at launch.

The official 2026–2027 roadmap image places the Hardcore launch in winter.

That slot comes after the December 9 raid unlock.

The roadmap notes that content and timing are subject to change.

Blizzard reworded these descriptions and replaced the screen in its ruleset post.

The post's list says Roleplay; a later paragraph still says Roleplaying.

PvP faction balance: what to expect if your faction is closed, and how to choose

Blizzard's posts describe two ways a faction can be closed to you on a PvP ruleset.

You have other-faction characters there, or the balance limit holds back the larger side.

For now, Blizzard says the larger side will get increasingly difficult to create.

That comes from community manager Kaivax's post of November 10, 2026 (UTC).

The same text went up on the U.S. and EU forums.

Blizzard changed how character creation judges faction balance.

It now weighs the overall balance of each region's PvP rulesets.

Before, the limit could feel like it reacted to snapshots of single moments.

The goal is to get as close to 50/50 as possible.

As of the November 10 post, even the most lopsided case in a region was roughly 55/45.

That was not close enough for Blizzard.

In a follow-up reply, Kaivax said 55/45 counts active logged-in players at all levels.

It is measured over a set period of time, not at one moment.

Kaivax also said Blizzard looked into trial accounts.

It found no evidence that trial characters affected the balance.

The post names two places where creation is getting harder.

One is the Horde on North American PvP rulesets.

The other is the Alliance on EU Roleplay-PvP.

For North America it says “PvP rulesets” in the plural.

It does not single out North American Roleplay-PvP.

It names no faction for EU PvP and does not mention Korea.

As players settle, Blizzard says these could flip to the other side.

Region and rulesetHarder to create now
North America, PvP rulesetsHordemay flip
Europe, Roleplay-PvPAlliancemay flip
Europe, PvPNot named
KoreaNot mentioned

Kaivax's post of November 10, 2026 (UTC), U.S. and EU forums. We found no Korean notice as of November 14.

It gives no date for lifting the limit and no threshold.

Blizzard calls the limit a necessary trade-off for the ruleset's long-term health.

It stresses the early weeks, while guilds form and rivalries start.

Our take: the post promises no quick reopening, so plan around the closed side.

If the faction matters more, pick Normal or Roleplaying.

Both allow both factions, and Blizzard describes the balance limit only for PvP rulesets.

If the ruleset matters more, create the faction that is open.

Either choice sticks: characters cannot move to another ruleset later.

Groups also need the same ruleset and faction, so settle this with friends first.

If you still want the closed side, try again later; Blizzard has not said when it opens.

Customer Support replies from late October still help you keep a name.

On October 30 (U.S. time), agent Vrakthris said names are unique to the region.

A name created on one ruleset cannot be used anywhere else in that region.

So you can hold a name on a PvE ruleset and recreate the character later.

An October 29 reply called that not the most elegant solution.

Blizzard has not said a deleted name is held for you, so recreate it right away.

The October 30 reply also said balance was recalculated throughout the day.

That came before the November 10 change; no new interval has been published.

Another October 29 reply says the account itself should not be locked to a faction.

Deleting your characters should normally let you create the other faction.

The balance limit can still block that, and Customer Support cannot lift it.

The limit itself is not new.

Blizzard's ruleset post compares it to Season of Discovery.

There, new character creation could be temporarily limited for a faction.

The English post says “PvP rulesets” there; German and Korean name only PvP.

On the October 29 tech podcast, a developer said balance ran per ruleset.

That is at about 54–56 minutes (auto-captions).

That was before the November 10 change.

The new post does not say whether PvP and Roleplay-PvP are still counted separately.

Around then, Blizzard also lowered player numbers in crowded zones, more so on PvP.

The layering section below has the details.

Our daily data collected on November 11, 2026 shows how much this matters to players.

Kaivax's U.S. forum post drew the strongest reaction of any thread that day.

It had 1,694 likes, 579 comments and 90,000 views at collection.

Many other threads asked for per-layer balancing, free transfers or faction changes.

Blizzard has not announced any of those.

These are player requests and opinions, not official statements.

If your faction is closed on a PvP ruleset

  1. Check the named sideHorde on North American PvP, Alliance on EU Roleplay-PvP; it may flip.
  2. Pick your priorityKeep the ruleset with the open faction, or your faction on Normal or Roleplaying.
  3. Hold the nameCreate it on a PvE ruleset; names are unique to the region.
  4. Recreate at onceWhen your side opens, delete and recreate it right away.

Who you can play with

ActivitySame rulesetOther ruleset
Group, guild, dungeons, raidsYessame factionNo
BattlegroundsYesMay mixnot Hardcore
Horde and Alliance in one groupNoNo

Players on the same ruleset can group, run dungeons and raid together.

Cross-ruleset grouping is not supported.

A friend on Normal and a friend on PvP cannot run a dungeon together.

Factions stay separate too: Horde and Alliance cannot group even on the same ruleset.

Battlegrounds may include players from other rulesets.

Hardcore is the exception and stays separate there too.

The ruleset post names no other exception, so that rule covers Roleplay-PvP as well.

Blizzard does not describe how matching works.

Blizzard's starter guide adds guilds: they also need the same ruleset and faction.

On the October 29 tech podcast (about 33–36 minutes), developers discussed this.

They said grouping PvE and PvP players for instance content was debated.

They kept the two apart for launch, citing the economy and each ruleset's identity.

They said the tech would allow a change later, but they announced no such plan.

For Roleplay and Roleplay-PvP, they named two last-resort levers.

Those are linked auction houses and grouping for instance content.

You can also set a language preference to meet players who chose the same one.

Press Escape, open Options, then Languages and Social under System.

There, pick your Preferred Online Language.

That setting is account-wide and applies to every character.

After a change, there is a 24-hour cooldown before you can change it again.

Official screenshot of Options, Languages and Social, with the Preferred Online Language dropdown open.
Where to set Preferred Online Language: Options, Languages and Social (official screenshot)Image: © Blizzard Entertainment · Source

Layers and world refreshes: can you stay in the same world as friends?

Blizzard describes each ruleset as a broad player ecosystem, not one traditional realm.

Players call the separate copies of the world inside it layers or shards.

The Blizzard news posts about Forever that we checked use neither word.

“World refresh” is what a developer called it at the BlizzCon 2026 Hardcore panel.

The panel video went up on the official WoW YouTube channel on September 15, 2026.

“World instance” is the wording of Blizzard's Beta known issues post for September 24.

The Beta development notes updated on October 1 use the same term.

Forum post dates here follow the dates Blizzard put in the post titles.

DateOfficial sourceWhat it says
September 15BlizzCon 2026 Hardcore panel (YouTube)Warning window, countdown and a move-now button“world refresh”; whole game, all rulesets
September 24Beta known issues (forums)Forming or changing a party may move you to another world instance“world instance”
September 27Community manager reply (Beta forum)Fixed an issue that filled the login queue after disconnects
October 1Beta development notes (forums)World instances adjusted; party leaders should no longer be transferredother party members not mentioned
October 29Official tech podcast (YouTube)Zone-based layers, guild and group priority, pop-up when joining a groupdescribed as launch plans
November 9WoW: Forever hotfixes (U.S. and EU forums)Lowered player numbers in several congested zonesbigger change on PvP

All are Blizzard sources. The first four were re-checked on 2026-10-07, the podcast on 2026-11-03. “World refresh” is the panel's wording; “world instance” is the forum posts' wording. The hotfix was checked on 2026-11-14.

The developer said this happens when your area has too many or too few players.

The game then refreshes the world around you.

Players near you can disappear, others appear, and cleared monsters can suddenly be back.

To make that fairer, Forever adds a warning window with a countdown.

It tells you to get somewhere safe.

In the panel's example the countdown started at 3 minutes.

If you are already safe, a button in the window lets you ask to be moved right away.

The developer said the feature was built for Hardcore but will happen in the whole game.

So it applies to every ruleset, not only Hardcore.

Blizzard said it would test the system in the Beta.

We have not tested the countdown ourselves.

No launch value has been announced, so treat 3 minutes as the panel's example only.

What the refresh warning does, as shown at the panel

  1. Warning appearsA window says the world around you is about to refresh.
  2. Countdown3 minutes in the panel's example.
  3. Get somewhere safeMove away from monsters before the timer ends.
  4. Move now or waitPress the button to move right away, or let the countdown finish.

On September 24, Blizzard added a party problem to the Beta known issues.

Creating or changing a party could transfer players to a different world instance.

Blizzard's October 1 Beta notes address it under World in the change log.

They say adjustments have been made to world instances.

Party leaders should no longer be transferred when creating or updating a party.

The notes name party leaders only and say nothing about other party members.

When we checked on October 7, the September 24 entry was still in the known issues post.

It had not been marked as resolved.

A developers' note says work continues on features that affect populations and grouping.

Blizzard asks for feedback and bug reports on them.

On September 27, a Blizzard community manager replied in a Beta thread about login queues.

The reply said an issue filling the queue after disconnects had been found and fixed.

Layering was one of the most discussed Beta topics.

Our daily report collected on October 7, 2026 covers posts from October 6–7, Korea time.

The most-liked layering thread on Blizzard's Forever forum argued it hurts community.

At collection it had 196 likes and 65 comments.

On r/classicwow, a thread on zone-based layering had a score of 145 and 36 comments.

These are community views, not official descriptions.

Blizzard's tech podcast of October 29 adds more on all of this.

We read the video's auto-captions and paraphrase them here.

A developer explained layers at about 20 minutes.

Each zone, or a small group of zones, works as one layer.

Blizzard can tune which zones connect, so launch may look different a month later.

At about 39 minutes, developers described placement.

The system tries to place you in a world with what it treats as your community.

Your client's language and language setting also affect the worlds you land in.

Say you join a guild and are not in a group.

You should then be in worlds with your guild's community.

When you group with friends or guildmates, the game prioritizes placing you together.

At launch, joining a group should bring up the pop-up instead of moving you right away.

You should then have a time window and can choose when to move.

Those are developers' descriptions of launch plans; we have not tested them.

After launch, Blizzard also thinned out crowded zones.

A November 9 hotfix lowered the player population in several zones with heavy congestion.

Blizzard said it made an even bigger change on the PvP ruleset.

Players had said several places felt overcrowded.

Blizzard will keep watching how zones feel and adjust further if needed.

Kaivax also posted the change in the faction balance thread.

Blizzard did not say which zones, by how much, or how the cut works.

If crowding worries you while you choose, note that PvP got the bigger cut.

Blizzard has not said how many world copies each ruleset runs.

It has not announced a way to pick your own copy.

Can you change later, and what does it cost

QuestionOfficial answer
Move a character to another rulesetNot possible; create a new character
Hardcore character diesCan transfer to another ruleset, including PvP
Cost of any transfer or faction changeNot announced
Collections and Legacy PointsAccount-wide; Hardcore is one-way
Second faction on PvPNot while you have the firstsee faction balance
Both factions on Roleplay-PvPNot stated

Movement between rulesets is intentionally limited.

You cannot move a character to another ruleset; you create a new one there.

The one exception Blizzard describes is Hardcore.

A Hardcore character that dies can transfer to another ruleset, including PvP.

Blizzard has not said whether that transfer costs anything.

Nor has it said whether Forever will have paid character transfers or faction changes.

Collections and Legacy Points are account-wide across rulesets.

Starting over on another ruleset keeps them.

Hardcore works one way only.

Progress, collections and rewards from Hardcore can become available elsewhere.

Progress from other rulesets does not flow into Hardcore.

Create an Alliance character on the PvP ruleset and you cannot create a Horde one there.

The reverse is also true.

A Customer Support reply says the account itself should not be locked to a faction.

The faction balance section covers that reply.

If you want both factions, Normal or Roleplaying allows that.

Whether Roleplay-PvP allows both factions has not been announced.

U.S., Europe and Korea: what differs by region

The realm list is gone, but regions are not.

Blizzard's September 21 naming post covers two-part character names.

Your full name must be unique within your region.

ItemU.S.Europe (Germany)Korea
Launch in Blizzard's tableNovember 4, 3:00 p.m. PSTNovember 5, 12:00 a.m. CETNovember 5, 8:00 a.m. KST
Ruleset names in the post's listNormal, PvP, Roleplay, Roleplay PvP, HardcoreNormal, PvP, Rollenspiel, Rollenspiel-PvP, Hardcore일반, PvP, 롤플레이, 롤플레이 PvP, 하드코어a later paragraph says 전쟁, 롤플레잉
Roleplay-PvP in the ruleset postYesnote on Oct 22; in the list nowYesnot yet on Oct 24Yesnot yet on Oct 24
Faction balance sentence“PvP rulesets”PvP onlyPvP only
Move characters to another regionWoW support articleNoNoNo

Launch post and ruleset post re-checked 2026-11-03; Blizzard Support article 10695 checked 2026-09-24. The Europe column uses the German posts.

Blizzard Support says WoW accounts and characters are region-locked.

So are progress, game time and items.

They cannot be transferred to another region.

To play in a different region, you buy a license there.

That support article covers World of Warcraft in general.

We have not found a separate Forever-specific region article yet.

Battle.net lists Forever in the Americas and Oceania, Europe, Korea and Taiwan.

Blizzard's launch post gives each region's start time.

The Americas start at 3:00 p.m. PST on November 4.

Europe starts at 12:00 a.m. CET on November 5.

Korea starts at 8:00 a.m. KST on November 5.

The ruleset post has changed by language over time, and it still differs.

On September 21, all three versions listed Normal, PvP, Roleplaying and Hardcore.

On October 22, the English versions gained a note about Roleplay-PvP.

On October 24, the German and Korean posts did not list Roleplay-PvP yet.

All three versions list it now; our re-checks on November 1 and 3 show that.

The pages' metadata gives a last edit on October 29 (UTC) for all of them.

That metadata does not say what changed, so we cannot date each edit more exactly.

The German and Korean pages still display September 21 as their date.

English now says “PvP rulesets” when it describes faction balance.

German and Korean still name only the PvP ruleset in that sentence.

The German and Korean starter guides also list Roleplay-PvP for launch.

Planning to play with friends abroad?

Agree on the region you buy and play in before you agree on a ruleset.

Blizzard has said little about how regions are grouped for Forever.

The October 29 podcast touches on this at about 51 minutes.

The host described Oceania and North America as sharing a region.

A developer said Australia has its own hardware.

You can still group with friends in North America, the developer added.

Does Korea get its own ecosystem or share one with other parts of Asia?

We found no Blizzard answer to that.

Which ruleset fits you, and a checklist before character creation

If you wantPickOfficial basis
Dungeons and raids with friendsTheir region, ruleset and factionRegions are separate; no cross-ruleset or cross-faction groups
New and unsure where to beginNormalStarter guide: a welcoming place to learn
No unwanted open-world fightsNormalPvP only when you choose
Open-world tensionPvPAlmost always at risk of attack
Characters on both factionsNormal or RoleplayingPvP allows one faction
Roleplay and immersionRoleplayingNaming and behavior rules
Roleplay plus open-world PvPRoleplay-PvPNaming and behavior rules; almost always at risk of attack
Permanent death stakesHardcoreafter launchNot available at launch

If you mainly want dungeons and raids with friends, play in the same region.

Then pick the same ruleset and faction they did.

If you want quests without unwanted open-world fights, Normal fits.

Blizzard's starter guide also calls Normal a welcoming place to learn if you are unsure.

If you want that tension, PvP fits, as long as one faction is enough on it.

If you want an immersion-focused community, Roleplaying fits.

If you want roleplay and open-world PvP together, Roleplay-PvP fits.

It adds strict naming and behavior rules, and you are almost always at risk of attack.

Blizzard's posts do not say whether it limits you to one faction.

The RP-PvP section below has the details.

If you are waiting for Hardcore, remember it opens after launch.

Progress from other rulesets will not carry into it.

① Check that you and your friends buy and play in the same region.

② Agree on the exact ruleset name.

③ Agree on a faction.

On PvP, your first faction is the only one you can create there.

If your faction is blocked, first check for other-faction characters on that ruleset.

If not, the balance limit may be holding back the larger side; see faction balance.

④ Set the same Preferred Online Language if language matters to you.

Changing it again takes 24 hours.

Class and race combinations are in our class and race table.

Subscription and bundle costs are in our pricing guide.

Roleplay-PvP: what changed, what it says now, what is still open

Roleplay-PvP is now on Blizzard's official ruleset lists for launch.

Developer Aggrend announced it on the U.S. and EU forums on October 22, 2026.

Blizzard's news names this developer as Senior Game Designer Josh “Aggrend” Greenfield.

The post said the ruleset would be added for launch on November 4.

November 4 is the U.S. date; local times are on our launch times page.

A week earlier, Blizzard had said there were no plans for it.

That was in episode 4 of the official podcast, released on October 15.

Blizzard then named three concerns: player numbers, splitting roleplayers, past realms.

On October 22, Aggrend said the team kept discussing it and watching feedback.

After looking at what it would take, Blizzard decided to add the ruleset.

Blizzard's U.S. notice of October 27 addresses Oceanic players during reservation.

It tells them to create Roleplay or Roleplay-PvP characters first.

We found no Blizzard post confirming that for Europe or Korea.

DateOfficial sourceWhat it said
September 21Ruleset post, all languagesNormal, PvP, Roleplaying; Hardcore after launch
October 15Podcast episode 4No plans for RP-PvP for now
October 22Aggrend's forum post (U.S. and EU), note on English postRoleplay-PvP for launch on November 4German and Korean posts: not yet on October 24
October 27U.S. forum notice for Oceanic playersNames Roleplay and Roleplay-PvP during reservation
October 29Tech podcastFaction balance per ruleset, aiming for 50/50before the November 10 change
October 29 (UTC)Page metadata of the ruleset postLast edit of the page in all languagesdoes not show what changed
October 24 to November 1Ruleset post, all languagesRoleplay-PvP in the list; new descriptions; English “PvP rulesets”exact date unknown
November 10Kaivax's forum post (U.S. and EU)EU Roleplay-PvP: Alliance creation getting harder

All are Blizzard sources. Rows to November 1 were re-checked on November 3, 2026, the November 10 row on November 14. The second-to-last row compares our saved October 24 copy with our November 1 check.

The English post now describes it directly.

It has strict naming conventions and behavior rules.

It is focused on player-versus-player combat.

You are almost always at risk of being attacked by opposing characters.

Roleplay-PvP has the faction creation limit too.

Since November 10, the limit weighs the overall balance of each region's PvP rulesets.

Blizzard said Alliance on EU Roleplay-PvP is getting harder to create.

The faction balance section above has the details.

What the posts still do not state is whether it limits you to one faction.

The one-faction sentence names only the PvP ruleset.

The both-factions sentence names Normal, Roleplaying and Hardcore, but not Roleplay-PvP.

Characters still cannot hop freely between rulesets.

So choose it when you create the character.

An early problem looks fixed: some characters landed on a ruleset nobody picked.

On October 31 (U.S. time), support agent Vrakthris said the team was looking into it.

On November 3 (U.S. time), the agent said all of those issues should now be resolved.

Some characters may still sit on a ruleset their owners did not intend.

Names are unique per region, so delete such a character and recreate it where you want.

The ruleset name may not appear at the top of character selection right away.

Switch to another ruleset and back to see it; the agent called that likely a bug.

Our character names guide covers what happened after reservation opened.

Our daily report collected on October 24, 2026 shows how much attention Roleplay-PvP drew.

Aggrend's U.S. forum thread had 2,640 likes in total and 372 replies at collection.

On r/classicwow, the biggest thread on it had a score of 2,453 and 1,340 comments.

A frequent question in those threads was whether RP-PvP locks you to one faction.

Another worry was that PvP and Roleplay-PvP could each end up mostly one faction.

Blizzard's November 10 faction balance post addresses the second point.

Blizzard's posts still do not answer the first.

What Blizzard has not announced yet

Neither table below has an official answer yet (re-checked 2026-11-14).

We looked in Blizzard's news, forum blue posts and support articles.

The first table lists items with no answer since our November 3 check.

That check also covered the BlizzCon 2026 Hardcore panel and podcast episode 4.

It also covered the auto-captions of the October 29 tech podcast.

Several older items came off this list on November 3.

Blizzard has now addressed zone splitting and guild placement.

It has also addressed moves when you join a group.

Korean posts now list Roleplay-PvP, and a U.S. notice mentions it during reservation.

ItemStatus
Exact Hardcore dateNot announcedroadmap: winter
How and at what cost a dead Hardcore character transfersNot announced
Paid character transfers or faction changesNot announced
Open-world PvP rules on RoleplayingNot announced
Roleplay-PvP: one faction per account, as on PvPNot statedbalance limit applies
How far a ruleset can tip before a faction closesNot announcedaim: 50/50
How often balance is recalculatedNot announcedmethod changed November 10
Cause of characters landing on the wrong rulesetNot explainedsupport: fixed, November 3
How Korea is grouped with other regionsNot announced
Refresh countdown length at launchNot announcedpanel example: 3 minutes
How many world copies per rulesetNot announced
Choosing your world copyNot announced

Unanswered since our November 3 check; re-checked 2026-11-14.

The second table lists new questions after the November 9 hotfix and November 10 post.

Neither post answered them.

ItemStatus
When the current faction limits liftNot announcedmay flip
Which faction is limited on EU PvP or in KoreaNot stated
Which zones got lower populations, and by how muchNot announcedbigger change on PvP

New after the November 9 hotfix and November 10 post; checked 2026-11-14.

Some notes in the first table reflect the November 3 support reply and November 10 post.

The items themselves are still unanswered.

Two rows came off: whether the limit works the same after launch, and RP-PvP reservation.

Blizzard changed the limit on November 10, and reservation ended with the launch.

When Blizzard publishes more, we will update this page's check date and change log.