4.3.0 pre-release, beta 6 = Fork Release for block 1 200 000

===============
If you're late upgrading, please use
https://github.com/bismuthfoundation/Bismuth/releases/tag/v4.3.0.1-beta.1

This was the most up to date candidate for 4.3.0 release, now considered as stable.

4.3.0 will be a mandatory update, in order to support the upcoming fork at block 1 200 000.
That will be around june 6.
See: https://hypernodes.bismuth.live/?p=586

This pre-release passed internal testing, it's likely to become the final release.

Service operators, pools, exchanges, are invited to test and upgrade to that version.

Change log from previous beta: slight adjustments to allowed versions to avoid network partitions, better compatibility with previous config files, fix to plugin api (block, fullblock and rollback events)

4.3.0 pre-release, beta 1

This is a beta candidate for 4.3.0 release.

NEWEST Post Fork beta 1 is available, see https://github.com/bismuthfoundation/Bismuth/releases/tag/v4.3.0.1-beta.1

This release is here for reference, but a few bugs are still being worked on, we're doing our best.

4.3.0 will be a mandatory update, in order to support the upcoming fork at block 1 200 000.
https://hypernodes.bismuth.live/?p=586

This pre-release passed internal testing, and we continue the tests.

Service operators, pools, exchanges, are invited to give this pre-release a try asap.

4.2.9.3

• More shared operations moved essentials.py
• File documentation updated
• Updated mempool syntax
• Removed ineffective pragmas from SQL
• Removed wallet latency by adding a threaded subroutine for refresh
• Class definitions now stored in libs directory individually
• Most database queries migrated to dbhandler.py
• Support of custom node commands for hyperlanes and much more (@EggPool)
• Hyperblock mode logic reworked
• Hyperblock mode reviewed and updated
• Testnet block duplication resolved
• peershandler module conditions modernized
• Peers dictionary now only saved if new peers are discovered
• Peers file failsafe for rare crashes
• Removed miner-related and pool-related configurations from config.txt
• Wallet import re-added