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Fulcrum 1.9.3
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@cculianu cculianu released this 31 Oct 06:04
· 108 commits to master since this release
v1.9.3
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This commit was signed with the committer’s verified signature.
cculianu Calin Culianu
GPG key ID: 21810A542031C02C
Learn about vigilant mode.

What's new:

This is a maintenance release of Fulcrum. In this release, the performance of mempool synching from bitcoind has been drastically improved.

Summary of changes:

  • Performance! - Improved the performance of the SynchMempoolTask by over 3x. Synching mempool has never been faster! This is particularly important when Fulcrum first starts up against a daemon that has chronically full mempools (such as on BTC).
  • Miscellaneous internal code fixes:
    • Compile-time cleanups to remove Qt 6.6.0 deprecated warnings.
    • We no longer compile the Fulcrum release with -fomit-frame-pointer since this optimization is pointless on 64-bit non-register-impaired architectures and what's more, it may lead to compiler bugs.
    • Other small nits.

Pre-compiled binaries for Linux

I have provided two pre-built binaries for Linux:

  • Fulcrum-1.9.3-x86_64-linux.tar.gz, which is compiled on an Ubuntu 18.04 system using Docker.
  • Fulcrum-1.9.3-arm64-linux.tar.gz, which is compiled on an Ubuntu 22.04 system (for ARM64 bit) using Docker.
  • Fulcrum-1.9.3-x86_64-linux-ub16.tar.gz, which is compiled on a stock Ubuntu 16.04 system (using Docker) but with g++ 8.1.0 installed from this ppa source: ppa:jonathonf/gcc-8 & ppa:jonathonf/gcc

All 3 of the above binaries contain jemalloc, libzmq, Qt5Core, Qt5Network (from Qt 5.15.6), and OpenSSL 1.1.1 statically linked. They still require libz2, libstd++, and the right libc version as dynamic libs on your system (but those are usually present if you are on a recent system).

If the first regular -linux binary fails, try the second one (-linux-ub16), which should work on older systems, hopefully.

Pre-compiled binaries for Windows

  • Fulcrum-1.9.3-win64.zip - Pre-built, statically linked Windows version.
    • It should "just work" on any Windows 10 or above 64-bit system.
    • Includes is a statically-linked Fulcrum.exe, built with jemalloc, libzmq, Qt 5.15.2, OpenSSL 3.0.1, and gcc 11.2.0.
    • Additionally, FulcrumAdmin.exe is included which is the python script, but made into a onefile .exe using PyInstaller.
      • NOTE Windows virus scanners have been known to erroneously identify FulcrumAdmin.exe as containing a virus. This is because many heuristic scanners dislike the use of PyInstaller onefile .exe's. See: #203. Please ignore this -- we contain no viruses! Also please complain to your virus software vendor about this.

See the .asc file for signatures; I signed the sha256 hashes of all the release binaries. My gpg public key can be obtained here: https://github.com/Electron-Cash/keys-n-hashes/blob/master/pubkeys/calinkey.txt

Binary builds for macOS coming soon -- Until then you can always build from source!

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