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| author | Wladimir J. van der Laan <laanwj@gmail.com> | 2014-10-17 13:11:59 +0200 |
|---|---|---|
| committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2014-10-21 14:56:28 +0200 |
| commit | c313d6ecb945f8d908b061989d31d53cb6d0297d (patch) | |
| tree | cb294b92133c287bfcdd6caee72a64d735ebc72c /doc | |
| parent | 6d3ab8564c3d4cd03e3f193d9029a4e271131edc (diff) | |
doc: add headers first backwards compat warning
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/release-notes.md | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md index 967a39a0e7..de13daf3e4 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -1,6 +1,27 @@ (note: this is a temporary file, to be added-to by anybody, and moved to release-notes at release time) +Block file backwards-compatibility warning +=========================================== + +Because release 0.10.0 makes use of headers-first synchronization and parallel +block download, the block files and databases are not backwards-compatible +with older versions of Bitcoin Core: + +* Blocks will be stored on disk out of order (in the order they are +received, really), which makes it incompatible with some tools or +other programs. Reindexing using earlier versions will also not work +anymore as a result of this. + +* The block index database will now hold headers for which no block is +stored on disk, which earlier versions won't support. + +If you want to be able to downgrade smoothly, make a backup of your entire data +directory. Without this your node will need start syncing (or importing from +bootstrap.dat) anew afterwards. + +This does not affect wallet forward or backward compatibility. + Transaction fee changes ======================= |