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Diffstat (limited to 'doc/release-notes.md')
| -rw-r--r-- | doc/release-notes.md | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md index 6e4f390cbc..3d2baaaaea 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -41,9 +41,21 @@ report issues about Windows XP to the issue tracker. Notable changes =============== -Example item ----------------- +Database cache memory increased +-------------------------------- + +As a result of growth of the UTXO set, performance with the prior default +database cache of 100 MiB has suffered. +For this reason the default was changed to 300 MiB in this release. + +For nodes on low-memory systems, the database cache can be changed back to +100 MiB (or to another value) by either: +- Adding `dbcache=100` in bitcoin.conf +- Changing it in the GUI under `Options → Size of database cache` + +Note that the database cache setting has the most performance impact +during initial sync of a node, and when catching up after downtime. bitcoin-cli: arguments privacy -------------------------------- @@ -113,12 +125,15 @@ git merge commit are mentioned. ### RPC and REST -Asm script outputs now contain OP_CHECKLOCKTIMEVERIFY in place of OP_NOP2 -------------------------------------------------------------------------- +Asm script outputs replacements for OP_NOP2 and OP_NOP3 +------------------------------------------------------- OP_NOP2 has been renamed to OP_CHECKLOCKTIMEVERIFY by [BIP 65](https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki) +OP_NOP3 has been renamed to OP_CHECKSEQUENCEVERIFY by [BIP +112](https://github.com/bitcoin/bips/blob/master/bip-0112.mediawiki) + The following outputs are affected by this change: - RPC `getrawtransaction` (in verbose mode) - RPC `decoderawtransaction` |