The write format 2 is smaller than the supported format 3 [2.2.224/5]

[sergmain]

After switching from SpringBoot 3.0 to 3.2 I've got the following error

Caused by: org.h2.mvstore.MVStoreException: The write format 2 is smaller than the supported format 3 [2.2.224/5]
	at org.h2.mvstore.DataUtils.newMVStoreException(DataUtils.java:996) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.FileStore.getUnsupportedWriteFormatException(FileStore.java:943) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.FileStore.processCommonHeaderAttributes(FileStore.java:547) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.RandomAccessStore.readStoreHeader(RandomAccessStore.java:227) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.FileStore.start(FileStore.java:916) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.MVStore.<init>(MVStore.java:289) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.MVStore$Builder.open(MVStore.java:2035) ~[h2-2.2.224.jar:2.2.224]
	at org.h2.mvstore.db.Store.<init>(Store.java:133) ~[h2-2.2.224.jar:2.2.224]
	... 35 common frames omitted

SpringBoot 3.0 is using h2 v2.1.214
SpringBoot 3.2 is using h2 v2.2.224

Do I understand it correctly - newest version of H2 can't read its own db files from previous minor version?

[andreitokar]

Yes, you understand it correctly. The only supported upgrade path requires exporting you database as SQL script, using an old H2 version, then creating a new empty database using new H2 version and executing SQL script there. In many cases it might work without this (like upgrade from 2.2.222 -> 2.2.224), but this is not guaranteed, especially when format was explicitly changed. And that format check is there to prevent data corruption. You should go back and follow that recommended procedure.

[sergmain]

PR Increase database format version #3834: Increase database format version

PR Disallow plain webAdminPassword values to force usage of hashes #3833: Disallow plain webAdminPassword values to force usage of hashes

I see what you did here. Got it.