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Fulcrum 1.9.7
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@cculianu cculianu released this 22 Nov 20:32
· 81 commits to master since this release
v1.9.7
f27fc28
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 bugfix release of Fulcrum. A very rare corner-case "abort" bug introduced in version 1.9.4 has been identified and fixed. See issue #214. While this bug is very rare and requires precise timing to occur, please do upgrade to 1.9.7 if you are running 1.9.4, 1.9.5 or 1.9.6 (1.9.3 and earlier are unaffected).

Summary of changes:

  • Fixed a rare corner-case race condition leading to a potential "abort" out of Fulcrum (server death), in very rare cases while synching mempool. It wouldn't lead to data corruption but could be highly annoying. Probability of it occurring was close-to-but-not-0. See issue #214 and commit 34a825a.

Pre-compiled binaries for Linux

I have provided two pre-built binaries for Linux:

  • Fulcrum-1.9.7-x86_64-linux.tar.gz, which is compiled on an Ubuntu 18.04 system using Docker.
  • Fulcrum-1.9.7-arm64-linux.tar.gz, which is compiled on an Ubuntu 20.04 system (for ARM64 bit) using Docker.
  • Fulcrum-1.9.7-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-1.9.7-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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