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authorMarcoFalke <falke.marco@gmail.com>2016-01-14 19:34:05 +0100
committerMarcoFalke <falke.marco@gmail.com>2016-01-17 12:05:13 +0100
commitfa8c497d846320d7c186025171bb9c89105896ae (patch)
tree1338277b5ebd41856b7fae09cdc1cb5a88c54253 /doc
parent82667afd7884555005bfd47a1aca7b10079aa735 (diff)
downloadbitcoin-fa8c497d846320d7c186025171bb9c89105896ae.tar.xz
[doc] backwards-compatibility issues due to chainstate obfuscation
Diffstat (limited to 'doc')
-rw-r--r--doc/release-notes.md15
1 files changed, 13 insertions, 2 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md
index 5454dfc5ef..c473ec0996 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -22,6 +22,8 @@ bitcoind/bitcoin-qt (on Linux).
Downgrade warning
------------------
+### Downgrade to a version < 0.10.0
+
Because release 0.10.0 and later makes use of headers-first synchronization and
parallel block download (see further), the block files and databases are not
backwards-compatible with pre-0.10 versions of Bitcoin Core or other software:
@@ -40,8 +42,17 @@ bootstrap.dat) anew afterwards. It is possible that the data from a completely
synchronised 0.10 node may be usable in older versions as-is, but this is not
supported and may break as soon as the older version attempts to reindex.
-This does not affect wallet forward or backward compatibility. There are no
-known problems when downgrading from 0.12.x to a version >= 0.10.0.
+This does not affect wallet forward or backward compatibility.
+
+### Downgrade to a version < 0.12.0
+
+Because release 0.12.0 and later will obfuscate the chainstate on every
+fresh sync or reindex, the chainstate is not backwards-compatible with
+pre-0.12 versions of Bitcoin Core or other software.
+
+If you want to downgrade after you have done a reindex with 0.12.0 or later,
+you will need to reindex when you first start Bitcoin Core version 0.11 or
+earlier.
Notable changes
===============