V21.0-ls5

LinuxServer Changes:

I am the release message for this internal branch.
nano-node Changes:

CHANGELOG

Release V21.0

Full Changelog

Major Changes

Pull Request	Title
#2535	Election state refactor
#2487	IPC 2.0
#2545	Sideband upgrade using epoch byte for is_send/receive/epoch
#2446	Node telemetry

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Protocol Changes

Pull Request	Title
#2701	Dont peer with v20 and earlier after epoch 2 block is seen
#2683	Increase minimum supported protocol version to 17
#2667	Validate work difficulty during ledger processing

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Node Configuration Updates

Pull Request	Title
#2787	Double default bandwidth limit config
#2727	Safely read override values when no config file is present
#2724	Clarify nano_pow_server configs are not in use
#2588	LMDB sync options and new config settings

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RPC Updates

Pull Request	Title
#2499	BREAKING Bootstrap attempts and connections/pulls separation
#2671	BREAKING Handle epoch_2 work thresholds in the wallet and most RPCs
#2689	BREAKING Change response for RPC work_validate with implicit difficulty
#2804	Make RPC name consistent with stats, websocket & protocol naming for telemetry
#2754	Optional "block" given to RPC "work_generate" to infer difficulty
#2753	Flood difficulty updates from RPC process
#2752	Result difficulty in RPC block_create
#2718	Epoch upgrader as an async task
#2704	Asynchronous epoch upgrade RPC
#2703	Difficulty calculation for RPC block_create
#2684	Epoch 2 started flag in ledger cache
#2619	Election refactor follow up
#2569	Work version concept
#2560	Request telemetry data for local node
#2481	Upgrade confirmation height table to include cemented frontier
#2414	Add block and voters count in election information
#2424	Fix RPC secure (TLS)
#2420	Add database vendor string to RPC version

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IPC Updates

Pull Request	Title
#2644	Add Flatbuffers schema evolution rules to IDL

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Websocket Updates

Pull Request	Title
#2774	Enable WebSocket server by default in Docker image
#2734	Websocket notification for RPC work_generate without peers
#2729	Websocket new_unconfirmed_block
#2634	Add telemetry response websocket callbacks
#2566	Incremental options for ws confirmation subscription
#2562	Fake websocket client to test the node websocket server
#2471	Websocket bootstrap subscription
#2444	Indeterminate vote status and enhanced websocket vote sub

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CLI Updates

Pull Request	Title
#2794	CLI commands incorrect ledger cache setup
#2749	Multithreaded --validate_blocks
#2725	CLI command for a frontier confirmation speed test
#2719	CLI compare_rep_weights to compare ledger and hardcoded weights
#2707	Add difficulty and multiplier to CLI work generation commands
#2637	Read config file for CLI commands
#2594	Allow CLI --config values for inactive node tests
#2606	Launch flag --allow_bootstrap_peers_duplicates
#2575	Add flag for vote_processor capacity and tests
#2579	Configurable inactive votes cache size
#2435	Add CLI command for better LMDB compaction

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Deprecation/Removal

Pull Request	Title
#2555	Disable UDP by default
#2769	Deprecate --batch_size/debug_mass_acitvity CLI options

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Developer Wallet

Pull Request	Title
#2427	qt dev wallet deserialization fix
#2419	Set wallet representative with RPC receive on unopened accounts

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Developer/Debug Options

Pull Request	Title
#2802	Clarify election difficulty update log message
#2793	Add logging section to rpc config to optionally disable logging
#2791	Fix insufficient work logging
#2762	Add cemented block log timings
#2746	Fix Xcode warnings
#2731	New stats for elections
#2591	friendly backtraces in actions
#2540	Lower beta network work threshold to 1/64x base
#2515	Additional ledger stats
#2489	Log when voting and warn if voting with more than one account
#2412	Fix work_cache_blocking logging bug

---

Fixed Bugs

Pull Request	Title
#2800	Fix open blocks not getting activated through dependencies
#2799	Slow test fixes
#2796	Retrieve block when activating dependencies
#2782	Stuck uncemented blocks after heavy load
#2781	Union std::hash coverage
#2767	Fix previous balance in active_transaction::insert ()
#2766	Votes from local representatives should not be flooded on processing
#2744	Tally votes on conflicting block with no inactive votes
#2733	Remove invalid uses of epoch_1 work threshold
#2723	Some confirmed block observer callbacks being missed
#2664	Incorrect cemented count during conf height algo transition
#2706	Prevent more rare deadlocks due to races for condition variables
#2651	Using relaxed atomics for counts not involved in control flow in conf height processor
#2696	Remove assert if a delayed work cache request is not found
#2652	Consistently add conflicting block to election
#2674	Modify inactive cache to prevent multiple insertions for confirmed
#2675	Prevent getting stuck in bl...

V20.0-ls5

LinuxServer Changes:

Rebase to Alpine 3.12.
Remote Changes:

Updating to V20.0

V21.0RC1-ls7

LinuxServer Changes:

Rebase to Alpine 3.12.
Remote Changes:

Updating to V21.0RC1

V21.0RC1-ls6

LinuxServer Changes:

Rebase to Alpine 3.12.
Remote Changes:

Updating to V21.0RC1

V21.0DB16-ls5

LinuxServer Changes:

Rebase to Alpine 3.12.
Remote Changes:

Updating to V21.0DB16

V21.1RC1-ls4

LinuxServer Changes:

I am the release message for this internal branch.
Remote Changes:

Updating to V21.1RC1

V21.0RC1-ls4

LinuxServer Changes:

I am the release message for this internal branch.
Remote Changes:

Updating to V21.0RC1

V21.0DB16-ls4

LinuxServer Changes:

I am the release message for this internal branch.
Remote Changes:

Updating to V21.0DB16

V21.0DB15-ls4

LinuxServer Changes:

I am the release message for this internal branch.
Remote Changes:

Updating to V21.0DB15

V20.0-ls4

LinuxServer Changes:

I am the release message for this internal branch.
nano-node Changes:

Change Log

Release V20.0 (2019-11-12)

Full Changelog

Major Changes:

• Add ability to start pow server as child process [#2331]
• Support epoch 2 [#2310]
• Active elections loop tuning [#2306]
• TOML config file support and migration [#2221]
• Adds RocksDB support [#2197]
• RPC publish optional work_watch flag to add to work_watcher [#2168]

Semantic Changes:

• Classify traffic stats correctly [#2309]
• Verify pubkey against special keys in wallet [#2299]
• Fixes account_history RPC to include receive blocks when filtering accounts. [#2244]
• Use node_ prefix for node ID [#2191]
• Assert for disabled bootstrap modes [#2163]
• Remove querying pending confirmation height in various operations [#2156]
• Accept multiplier in work_generate and work_validate [#2151]

Implemented enhancements:

• Improve bootstrap for accounts with public key = existing block hash [#2400]
• Improve bootstrap frontiers confirmation [#2394]
• Lazy bootstrap memory usage improvements [#2385]
• Vacuum after upgrade [#2370]
• Use std::condition_variable_any with timed locking [#2365]
• Lazy bootstrap retry limit [#2362]
• Confirm frontiers for bootstrap with multiple failures [#2349]
• Non-blocking UPnP discovery [#2346]
• Attempt to fetch account from block hash in RPC work_generate [#2339]
• Unchecked cleanup tuning [#2336]
• Restart dropped elections for unconfirmed blocks with higher PoW [#2335]
• Add ability to start pow server as child process [#2331]
• Basic confirmation request loop enhancements [#2327]
• CLI command to output the total number of (un)opened account versions [#2323]
• Periodic rep crawler weights update [#2319]
• Add lazy bootstrap possible links and accounts [#2315]
• Allow node to work without work generation [#2312]
• RPC epoch_upgrade [#2304]
• Update broadcast_confirm_req_batch to handle PoW priority [#2303]
• Strong types for the various bit unions [#2300]
• Stacktrace with backtrace to display files and lines [#2298]
• Lazy bootstrap cleanup & basic improvements [#2292]
• Some minor cleanup [#2291]
• Add block count cache [#2290]
• Fixing some unused variable warnings. [#2285]
• Replace account_info::rep_block with representative account [#2283]
• Enhance block processor filter [#2282]
• Handle work generation failure and cancel [#2281]
• Split bootstrap source files [#2274]
• Disable unchecked cleanup if node is not synchronized [#2272]
• Add log when a block difficulty is updated in active transactions [#2270]
• CLI --debug_validate_blocks enhancement [#2269]
• Refactoring epochs [#2268]
• Track length of time mutexes are held for [#2267]
• Add config option to conditionally enable RocksDB backend [#2266]
• Prevent possible from_multiplier () function overflow [#2265]
• Prevent adjusted difficulty overflow for extremly high or low difficulty [#2260]
• Prevent dropping of unchecked on restart if node is not synchronized [#2257]
• Distributed work refactor [#2255]
• Enhancements to OpenCL work handling [#2247]
• Wrap boost::asio::async_write to ensure lifetime of buffers [#2240]
• Start frontiers confirmation after initial bootstrap [#2236]
• Enforce upper case for hashes/signatures string output [#2235]
• Fire callback & add to history after confirmation height is set [#2233]
• Allow Cmake AVX2 builds for Windows [#2232]
• Reduce time holding read transaction in vote processor [#2231]
• Distibuted work fixes [#2230]
• Watch blocks separately in work watcher [#2228]
• Configurable work watcher period [#2222]
• Improve throttled received block for bootstrap [#2220]
• Use max config difficulty internally [#2218]
• Throttled received block for bootstrap [#2216]
• Add counter in stats for number of incoming blocks dropped [#2215]
• Config option for single line logging records [#2214]
• Beta reset with new genesis and lower work threshold [#2207]
• Travis/artifacts to s3 [#2204]
• Provide optional automatic ledger/wallet backups before an upgrade [#2198]
• Adds RocksDB support [#2197]
• Process wallet blocks outside of block processor queue [#2196]
• In http callback, don't log any http responses indicating success as errors [#2193]
• Callback response misleading [#2192]
• Add frontiers confirmation modes [#2175]
• RPC publish optional work_watch flag to add to work_watcher [#2168]
• Use confirm_req by hash + root for upgraded peers [#2164]
• Assert for disabled bootstrap modes [#2163]
• Cache recently arrived votes [#2159]
• Improve votes caching for same account & increase max cache size [#2155]
• Prioritize node wallet frontiers during background confirmations [#2154]
• Accept multiplier in work_generate and work_validate [#2151]
• Improve docker build speed on multi-core machines [#2148]
• Improve stacktrace output during release_assert [[#2142]...