UNSTABLE: July'21 developer's preview

Improved escrow and HTLC interface and various core improvements.

UNSTABLE: June'21 developer's preview

• Multitool interface to create contracts with a deadline and escrow introduced, as well as signing spending transactions for contract locked funds;
• Fixed some issues with OP_RETURN transactions;
• BIPS 9, 68, 112 and 113 merged, scheduled for late 2021, as well as segregated witness support, scheduled for Q1 2022.

0.10.1 Softfork Activation Update

This release activates BIP65 softfork. Once the majority of miners update, blocks of older versions will no longer be accepted by network.

0.10.0 Rebuild: You May (Not) Segfault

Disabled AVX2 instructions on Windows due to the compiler bug causing random crashes on certain CPUs.
Otherwise it's exactly the same code.

Known issues:

• performing a wallet backup via menu or RPC may create a corrupt wallet. To be fixed in 0.10.1.

0.10.0 release

Win64 static build and source code.
'Lowdpi' build contains a workaround for improper scaling on superresolution desktops.

Known issues:

• performing a wallet backup via menu or RPC may create a corrupt wallet. To be fixed in 0.10.1.

UNSTABLE 0.10 preview with new sync modes and quick start

Adds new option -fastindex (enabled by default), which allows to skip block hash reconstruction on startup.
THIS CHANGES THE INDEX DATABASE FORMAT, RUNNING WITH AN EXISTING DATADIR WILL FORCE REINDEX.
100-200 MB extra disk space will be used by now-stored block hashes.

Other changes since the non-quickstart version:

• leveldb defaults to 1000 open files for Windows.
• UPDATE! SPV block request speed greatly improved.
• UPDATE! GUI lag for wallets with lots of transactions reduced significantly.
• UPDATE! GUI should now be responsive during reindex.

Known issues:

• win32 build may run out of available memory during reindex. It is recommended to upgrade to win64 build.
• reindex attempt with -spv=1 might result in a segfault. Release updated, please redownload.
• possible crash on shutdown following the reindex has been reported. Kindly test the latest build against it.

UNSTABLE 0.10 preview with new sync modes (bugfix)

Adds new sync options based on Bitcoin PR#9483:
-spv: if set to 1, rely on headers and fresh blocks to check transactions.
-autorequestblocks: if set to 0, do not download blocks that are older than your wallet.
Modes selectable through GUI settings:

• Full: -spv=0 -autorequestblocks=1 (default).
• Pruned: -spv=0 -autorequestblocks=1 -prune=200 (or whatever you select). Needs reindex to switch back from. Only there for the completion sake and is not recommended.
• Lightweight: -spv=1 -autorequestblocks=0. Full SPV mode, only new blocks requested.
• Hybrid: -spv=1 -autorequestblocks=1. All blocks requested, but you're good to go after headers and new blocks are downloaded. Allows flawless switching to/from full mode.
  Naturally, -spv=0 -autorequestblocks=0 is not there since it's only useful for debug purposes.

Changes since the previous SPV snapshot:

• Fixed a crash upon receiving empty headers.
• SPV/non-SPV transaction state is now properly read from the wallet.

Changes since milestone 1:

• initial sync should no longer generate excess network traffic;
• even faster reindex;
• protobuf is now optional, BIP70 support is not built by default;
• compact blocks and HD keys support;
• significant improvements in memory management and network response time (the latter even helps old peers!).

UNSTABLE 0.10.0 snapshot

This build is for testers. It is strongly advised NOT to use it for production and financial purposes. If you do and your funds go poof, TOUGH! You've been warned.
This snapshot includes the following improvements from 0.9:

• Faster sync, reindex, rescan and bootstrap (sometimes order of magnitude faster).
• Fast, robust HTTP/RPC server with the optional REST API support.
• Automated hidden service setup.
• Fee control features.

ZMQ support is DISABLED in win32 build. As before, it's 32bit LAA.
Blocks which count towards BIP65 softfork will NOT be generated in pre-release builds.

0.9.2 update

• Default fee policy has been adjusted to ensure relaying of huge transactions.
• Added paper wallet generation and printing support.
• DNS seed is online.
• Updated Discord link.

0.9.1 release

Win32 (large address aware) static build.

Known issues:

• Huge (roughly over 50KB) transactions may get stuck with the default fee settings. To be resolved in 0.9.2.