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| author | Patrick Lodder <[email protected]> | 2021-08-20 06:10:34 +0200 |
|---|---|---|
| committer | Patrick Lodder <[email protected]> | 2021-08-20 06:10:34 +0200 |
| commit | 1fe44fa0ee4edcfba02bf6d52d4dbc6028c8a3c9 (patch) | |
| tree | 52b6222d9b1a206475268a60a6e23a7b3cb50371 /doc | |
| parent | rewrite the fee chapter (diff) | |
| download | discoin-1fe44fa0ee4edcfba02bf6d52d4dbc6028c8a3c9.tar.xz discoin-1fe44fa0ee4edcfba02bf6d52d4dbc6028c8a3c9.zip | |
split network and security enhancements
Diffstat (limited to 'doc')
| -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 c0be2a6c3..cafe0b296 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -73,9 +73,25 @@ their wallets with the `-paytxfee=<amount per kb>` option. Synchronization Improvements ---------------------------- -* Disconnect peers which do not respond to requests for headers in a timely manner, to optimise synchronization rate. -* Dogecoin Core will no longer request further headers from a peer it is already downloading headers from. This stops Dogecoin Core from requesting the same headers more than once, and reduces network bandwidth wasted. -* Proactively reject block headers which would build on an invalid chain. +This release removes a bug in the network layer where a 1.14 node would open +many parallel requests for headers to its peers, increasing the total data +transferred during initial block download up to 50 times the required data, per +peer, unnecessarily. As a result, synchronization has time has been reduced by +around 2.5 times. + +Additionally, when a node is in initial synchronization and a peer takes too +long to respond to a new header request, it is now aggressively disconnected, +to free connection slots for faster peers and not add more stress to already +overloaded peers. + +Security enhancements +--------------------- + +* Proactively disconnect peers sending block headers which would build on an + invalid chain. +* Improve handling and logging of invalid blocks and their descendants +* Fix a bug that was preventing nodes to load a fixed peer list in case DNS + services are unreachable. GUI Improvements ---------------- @@ -101,7 +117,6 @@ Minor Changes * Modify Scrypt code so it's compatible with Alpine Linux's musl library. * Update libevent to 2.1.11 * Update ZMQ to 4.3.4 -* Correctly set fixed seeds on startup. * Add build instructions for NixOS. * Fix a rare crash bug on shutdown due to ActivateBestChain() being called when there is no best chain. * Fix port numbers in `contrib/seeds/generate-seeds.py`. |