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CHANGELOG.md

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v3.4.0
2023-06-14
  • Breaking changes to the API (see ./api/changelog)
  • Homepage
    • New "Next Halving" widget in Network Summary
    • Show difficulty ATH comparison
    • Show "Next Block" fullness
    • Progress bar for difficulty adjustment estimate
    • Include median fee rate for next-block estimates (also on /next-block)
    • Show a banner if 'today' is a Bitcoin 'Holiday' (see more below)
  • Minor fixes for running against Bitcoin Core v23
  • Block Analysis: include top "days destroyed" transactions
  • URL change: /mining-template -> /next-block (redirect is included for compatibility)
  • On Extended PubKey pages, include balance data for various address (if Electrum server is configured)
  • New /next-halving tool
  • Several new API actions/changes; see /api/changelog
  • New /holidays, a curated list of Bitcoin 'Holidays'
  • Support for different view options on /fun
  • On /difficulty-history, make delta graph honor timespan filtering
  • Proper use of production-ready MemoryStore for session data
  • Support for serving static assets via a configurable CDN
  • Misc fixes for erroneous data display on non-mainnet nodes
  • Switch from fontawesome to bootstrap-icons v1.8.0
  • Refreshed miner-identification database
  • Refreshed "Dark" theme with blues toned down (legacy dark theme still available)
  • UI/UX tweaks
  • Misc minor fixes
  • Updated dependencies
v3.3.0
2021-12-07
  • New tool for viewing the UTXO Set: /utxo-set
  • New API actions:
  • Major fixes for data displayed in /tx-stats tool
  • Updated miners, including identification of "Patoshi"-pattern blocks
  • /node-details: Include coinstatsindex status
  • Support querying UTXO Set even with slowDeviceMode=true, iff coinstatsindex is available
  • Fix for difficulty adjustment estimate
  • /difficulty-history: Support for viewing different time ranges
  • When viewing unconfirmed transaction details, show an info dialog if the transaction is predicted to be confirmed in the next block
  • Performance improvements
    • Fix for performance degradation over time due to slow "estimatedSupply" function
    • Homepage speedup by making "Estimated Next Block" data load asynchonously
    • Caching for /difficulty-history data
  • Unicode formatting for OP_RETURN and other similar data (with ascii+hex accessible via toggle)
  • New .env options for setting defaults (see .env-sample for details):
    • BTCEXP_DISPLAY_CURRENCY (btc,sat,local)
    • BTCEXP_LOCAL_CURRENCY (usd,eur,gbp)
    • BTCEXP_UI_TIMEZONE (utc,local)
    • BTCEXP_UI_HIDE_INFO_PANELS (true,false)
  • Support for displaying timestamps in local timezone (by using browser default, or setting a manual offset)
  • Cleanup treatment of locktime on transaction details pages
  • Unique favicon color based on the active network (mainnet=orange, testnet=green, signet=magenta, regtest=gray)
  • Lots of minor styling improvements
  • Error handling improvements
  • Fix for /api/quotes/all
  • Fix for incorrect date on "Diario El Salvador..." fun item (thanks @Dirkson643)
  • New Fun items related to Taproot activation
  • Performance log admin page at /admin/perf-log
  • Updated dependencies
v3.2.0
2021-08-10
  • Public API! See the docs at /api/docs (thanks @pointbiz)
  • XPUB pages: search for any xpub (ypub, zpub, etc) and see summary details and a list of associated addresses (thanks @pointbiz)
  • Homepage: add "Predicted Next Block" section
  • Mempool Summary: add top-fee transactions table
  • Improvements to transaction details UI, especially on smaller screens
  • Cleanup support for Taproot/bech32m
  • New /mining-template tool, showing structured output of getblocktemplate command
  • Various improvements to charts and graphs throughout the tool (including lots of y-axis changes: linear->log)
  • Better support for BIP9 soft forks shown on /node-details (e.g. Taproot ST in 0.21.1) (Thanks @Pantamis)
  • New "Recent" and "Favorites" sections on /rpc-browser
  • Block lists: show (min, avg, max) fee rates instead of just avg
  • Random Bitcoin-related quote shown in footer on each page load
  • New /quotes, curated list of Bitcoin-related quotes (each quote also having its own page like this)
  • Preemptive support for upcoming format change to getrawtransaction output (thanks @xanoni)
  • Fix for incorrect homepage block count when using BTCEXP_UI_HOME_PAGE_LATEST_BLOCKS_COUNT
  • Fix for inaccurate difficulty adjustment estimates
  • Link to Tor v3 Hidden Service in footer
  • Fix for DEBUG environment variable being ignored
  • Fix for /rpc-terminal not parsing non-int parameters properly
  • Fix for edge case where txindex availability check fails at startup (add retries with exp. backoff)
  • Fix for tiny-value display (i.e. 1e-8 -> 0.00000001)
  • Misc UI/UX tweaks
  • Cache busting for frontend resources
  • Improved error handling in many places
  • Updated dependencies
v3.1.1
2021-04-20
  • Fix SSO flow broken by v3.0.0 update
  • Fix for regtest network errors on homepage
  • Fix for server errors in Docker-based installs
v3.1.0
2021-04-14
  • Improvements to no-txindex support: now available for all versions of Bitcoin Core
  • Move public sites to BitcoinExplorer.org (BIG thanks @SatoshisDomains)
  • Add back the /peers tool in the "Tools" menu
    • Note: The map on the peers tool now requires users set their own BTCEXP_MAPBOX_APIKEY in .env
  • Response compression
  • Remove reference to unused fonts.css
  • Increased static-files cache: 1hr -> 1mo
  • Clearer UX around RPC connection failures (show the fact clearly, instead of flooding the log with cryptic errors)
  • Fixed changelog for v3.0.0 release (added/clarified some issues)
  • Updated favicons (Thanks realfavicongenerator.net)
  • Fix for homepage error after failure to get AU exchange rate
  • UX improvements on /peers page
  • Graphs for top items in /admin/stats
  • Optional support for plausible.io analytics
  • Fix to avoid displaying empty "Summary" section when we fail to get address txid list
  • UX improvement around electrs too-many-txs-for-address errors
v3.0.0
2021-04-08
  • Major visual refresh!
    • All new design (layout, fonts, colors, etc)
    • Redesigned Dark Mode (now the default)
    • New app icon
  • Support for pruned nodes and nodes with disabled txindex! (HUGE Thanks to @shesek)
    • Note: Currently only Bitcoin Core versions 0.21+ are able to support this feature (a future improvement is planned to make it available to all versions)
  • Mempool Summary improvements
    • Greatly improved performance for multiple loads via caching
    • Added: "Blocks Count" column by fee-rate bucket
    • Tool for estimating Block Depth of a transaction or a fee rate (Thanks @pointbiz)
  • Mining Summary: added doughnut chart for rev. breakdown, simplified table data
  • Upgraded to Bootstrap 5 (currently beta3...)
  • Update mapbox API (Thanks @shesek)
    • Note: The map on the /peers page now requires that users set the env var BTCEXP_MAPBOX_APIKEY to their own API key
  • Fix for 404 pages hanging (Thanks @shesek)
  • Add convenience redirect for baseUrl (Thanks @shesek)
  • Make url in logs clickable (Thanks @shesek)
  • Caching for static files (maxAge=1hr)
  • Frontend performance optimizations
  • Smarter performance/memory defaults for slow devices
  • Major refactoring, modernization, and code-reuse improvements
  • UX improvements and polish throughout
  • URL changes
    • /node-status -> /node-details
    • /unconfirmed-tx -> /mempool-transactions
  • Environment variable changes
    • The below changes were made to more clearly acknowledge that multiple Electrum-protocol implementations (e.g. ElectrumX, Electrs) can be used for address queries:
    • BTCEXP_ADDRESS_API value electrumx -> electrum (electrumx should still works)
    • BTCEXP_ELECTRUMX_SERVERS -> BTCEXP_ELECTRUM_SERVERS (BTCEXP_ELECTRUMX_SERVERS should still work)
  • Updated dependencies
    • jQuery: v3.4.1 -> v3.6.0
    • highlight.js: v9.14.2 -> v10.7.1
    • fontawesome: v5.7.1 -> v5.15.3
v2.2.0
2021-01-22
  • New "Fun" item for the tx containing the whitepaper and new tool to extract the whitepaper and display it
  • New fee rate data on /block-analysis pages
  • New minor misc peer data available in Bitcoin Core RPC v0.21+
  • New gold exchange rate on homepage
  • Fix for SSO token generation URL encoding (Thanks @shesek and @Kixunil)
  • Fix for /peers map
  • Fix for README git clone instructions (Thanks @jonasschnelli)

v2.1.0

2020-12-15
  • Support for running on a configurable BASEURL, e.g. "/explorer/" (Thanks @ketominer, @Kixunil, @shesek)
  • Support for SSO (Thanks @Kixunil)
  • Support for signet and taproot (Thanks @guggero)
  • Support for listening on 0.0.0.0 (Thanks @lukechilds)
  • Support for viewing list of block heights for each miner on /mining-summary
  • Sanitizing of environment variables (Thanks @lukechilds)
  • Fix for XSS vulnerabilities (Thanks @shesek)
  • Fix for low severity lodash dependency vulnerability (Thanks @abhiShandy)
  • Fix for zero block reward (eventually on mainnet, now on regtest) (Thanks @MyNameIsOka)
  • Fix for cryptic error when running regtest with no blocks
  • Fix for pagination errors on /blocks (not displaying genesis block on the last page; error on last page when sort=asc)
  • Electrum connect/disconnect stats on /admin
  • Add P2SH bounty address /fun items (Thanks @cd2357)
  • Misc cleanup (Thanks @AaronDewes)
  • Add "Thanks" notes to changelog

v2.0.2

2020-07-03
  • Lots of improvements to connect/disconnect/error management with configured Electrum servers
  • Include pending balance for addresses queried via ElectrumX, when available
  • Include basic stats for Electrum queries on /admin
  • Bug fixes
    • Fix for erroneous defaults for boolean env vars in some scenarios (slow device mode)
  • Updated dependences and mining pools
  • Misc cleanup (Thanks @JosephGoulden)

v2.0.1

2020-05-28
  • Highlight coinbase spends in transaction I/O details
  • Highlight very old UTXOs (5+ years) in transaction I/O details
  • Transaction page: show "days destroyed"
  • Bug fixes
    • Fix for "verifymessage" in RPC browser accepting multi-line messages
    • Fix to make "--slow-device-mode=false" work
    • Don't show errors on address page for bech32 due to trying to parse as base58
    • Fix "failure to render homepage when fee estimates are unavailable"
  • Minor additions to "fun" data
  • Updated dependences

v2.0.0

2020-03-25
  • New data points in homepage "Network Summary":
    • Fee estimates (estimatesmartfee) for 1, 6, 144, 1008 blocks
    • Hashrate estimate for 1+7 days
    • New item for 'Chain Rewrite Days', using 7day hashrate
    • New data based on UTXO-set summary. Note that UTXO-set querying is resource intensive and therefore disabled by default to protect slower nodes. Set BTCEXP_SLOW_DEVICE_MODE to false in your .env file to enjoy associated features:
      • UTXO-set size
      • Total coins in circulation
      • Market cap
    • 24-hour network volume (sum of tx outputs). This value is calculated at app launch and refreshed every 30min.
    • Avg block time for current difficulty epoch with estimate of next difficulty adjustment
  • Tweaks to data in blocks lists:
    • Simpler timestamp formatting for easy reading
    • Include "Time-to-Mine" (TTM) for each block (with green/red highlighting for "fast"/"slow" (<5min / >15min) blocks)
    • Display average fee in sat/vB
    • Add total fees
    • Add output volume (if getblockstats rpc call is supported, i.e. 0.17.0+)
    • Show %Full instead of weight/size
  • Block Detail page improvements
    • New data in "Summary" on Block pages (supported for bitcoind v0.17.0+)
      • Outputs total volume
      • Input / Output counts
      • UTXO count change
      • Min / Max tx sizes
    • New "Fees Summary" section (bitcoind v0.17.0+)
      • Fee rate percentiles
      • Fee rates: min, avg, max
      • Fee totals: min, avg, max
    • New "Technical Details" section. Items from "Summary" in previous versions have been moved here. This section is collapsible if desired.
  • Improvements to transaction input/output displays
    • Change primary input data to be tx outpoint ("txid #voutIndex")
    • Zero-indexing for tx inputs/outputs (#173)
    • Labels for transaction input/output types
    • Inputs: when available, show "input address" below tx outpoint
    • Coinbase and OP_RETURN items: show ascii data inline with link to show hex data
  • New tool /block-stats for viewing summarized block data from recent blocks
  • New tool /mining-summary for viewing summarized mining data from recent blocks
  • New tool /block-analysis for analyzing the details of transactions in a block.
    • IMPORTANT: Use of /block-analysis can put heavy memory pressure on this app, depending on the details of the block being analyzed. If your app is crashing, consider setting a higher memory ceiling: node --max_old_space_size=XXX bin/www (where XXX is measured in MB).
  • New tool /difficulty-history showing a graph of the history of all difficulty adjustments
  • Change /mempool-summary to load data via ajax (UX improvement to give feedback while loading large data sets)
  • Zero-indexing for tx index-in-block values
  • Reduced memory usage
  • Versioning for cache keys if using persistent cache (redis)
  • Configurable UI "sub-header" links
  • Start of RPC API versioning support
  • Tweaked styling across site
  • Homepage UI tweaks
    • Remove "Bitcoin Explorer" H1 (it's redundant)
    • Hide the "Date" (timestamp) column for recent blocks (the Age+TTM is more valuable)
  • Updated miner configs
  • Lots of minor bug fixes

v1.1.9

2020-02-23
  • Fix for unescaped user search query display (#183)
  • More detailed network info on /node-status
  • Updated bootstrap, jquery
  • Disable stacktrace log output by default (#170)
  • Updated miner configs

v1.1.8

2020-01-09
  • Fix for missing changelog file when installed via npm
  • Updated miner configs

v1.1.5

2019-12-22
  • Fix startup issues when connecting to a node that's not ready to serve data (e.g. verifying blocks)
  • Homepage header: show exchange rate in selected currency (rather than hardcoded USD)
  • Homepage header: show sat/USD or sat/EUR

v1.1.4

2019-12-04
  • First-class support for testnet/regtest

v1.1.3

2019-12-02
  • Fixes related to running bitcoind 0.19.0.1
  • Updated dependencies
  • Version number in footer
  • /changelog linked in footer

v1.1.2

2019-10-17
  • Add back map on /peers that was lost with recent bug

v1.1.1

2019-10-01
  • Add new default blacklist items for some 'hidden' RPCs
  • Print app version info to log on startup
  • Remove LTC site from footer

v1.1.0

2019-09-30
  • Show spent/unspent status on tx detail pages
  • Show mempool ancestor/descendant txs on tx detail pages
  • Blacklist 'createwallet' by default
  • Show RBF status for unconfirmed txs
  • Faster, more reliable display of /mempool-summary and /mempool-transactions pages
  • Fix for persisting arg values in UI on /rpc-browser
  • Misc minor fixes and ux tweaks

v1.0.3

2019-04-27
  • Pluggable address API supporting different implementations
  • Logging improvements
  • Fix to avoid caching unconfirmed txs
  • Identify destroyed fees
  • Misc minor fixes and ux tweaks

v1.0.2

2019-03-13
  • Fix for background color on light theme

v1.0.1

2019-03-13
  • Dark theme
  • Tx rate graph on homepage
  • Improved caching
  • Misc minor fixes and ux tweaks

v1.0.0

2019-02-23
  • Initial release