bitcoin-change history study

发表于 更新于 分类于 阅读次数： 本文字数： 4k 阅读时长 ≈ 4 分钟

change history

2014-03-19 Bitcoin Core version 0.9.0 released

  • OP_RETURN feature
    这个特性不是认可在区块中存储数据，而是创建一个可证明，可裁剪的 output，避免已经提交的一些存储模式，
    例如：在 unspendable TX outputs 中保存图片等任意数据。避免 UTXO database 膨胀影响使用。

在区块中存储非交易数据现在仍然是个坏主意，保存在其他地方更有效率并且成本也更低。

  • Autotools build system
  • Bitcoin-cli
  • Transaction Fees

2014-04-08 Bitcoin Core version 0.9.1 released

No code change, just dependencies

2014-06-16 Bitcoin Core version 0.9.2 released

  • Gitian OSX build
  • GUI

2014-06-19 Bitcoin Core version 0.9.2.1 released

not found potential fork feature

2014-09-27 Bitcoin Core version 0.9.3 released

not found potential fork feature

2015-02-16 Bitcoin Core version 0.10.0 released

BIP 66: strict DER encoding for signatures

2015-04-27 Bitcoin Core version 0.10.1 released

not found potential fork feature

2015-05-19 Bitcoin Core version 0.10.2 released

not found potential fork feature

2015-07-12 Bitcoin Core version 0.11.0 released

  • Change the default maximum OP_RETURN size to 80 bytes
  • Implement BIP62 rule 6
  • Implement BIP66

2015-10-14 Bitcoin Core version 0.10.3 released

2015-10-15 Bitcoin Core version 0.11.1 released

2015-11-13 Bitcoin Core version 0.11.2 released

BIP113 specifies a soft fork

2016-02-23 Bitcoin Core version 0.12.0 released

2016-04-15 Bitcoin Core version 0.12.1 released

This release includes a soft fork deployment to enforce BIP68, BIP112 and BIP113 using the BIP9 deployment mechanism.

2016-08-23 Bitcoin Core version 0.13.0 released

  • From 0.13.0 on, Windows XP is no longer supported.
  • C++11 and Python 3
  • Newly created wallets will use hierarchical deterministic key generation according to BIP32 (keypath m/0’/0’/k’). Existing wallets will still use traditional key generation.
  • Segregated Witness not activate yet
  • Removal of internal miner

2016-10-27 Bitcoin Core version 0.13.1 released

Implement NULLDUMMY softfork (BIP147) (jl2012)

2017-01-03 Bitcoin Core version 0.13.2 released

2017-03-08 Bitcoin Core version 0.14.0 released

2017-04-22 Bitcoin Core version 0.14.1 released

2017-06-17 Bitcoin Core version 0.14.2 released

2017-09-14 Bitcoin Core version 0.15.0 released

2017-09-19 Bitcoin Core version 0.15.0.1 released

fix gui bug

2017-11-11 Bitcoin Core version 0.15.1 released

2018-02-26 Bitcoin Core version 0.16.0 released

  • Segwit Wallet
  • HD-wallets by default
    Due to a backward-incompatible change in the wallet database, wallets created with version 0.16.0 will be rejected by previous versions. Also, version 0.16.0 will only create hierarchical deterministic (HD) wallets. Note that this only applies to new wallets; wallets made with previous versions will not be upgraded to be HD.

    2018-06-15 Bitcoin Core version 0.16.1 released

    2018-07-29 Bitcoin Core version 0.16.2 released

List of Bitcoin consensus fork

ref.
after 0.8.6 version there is six soft fork has been done

Date Activation Block Number BIP Number or Software Version Description Type Outcome
4 July 2015 363,731 BIP66 Strict DER signature upgrade means Bitcoin is no longer dependent on OpenSSL’s signature parsing. Softfork 95% threshold over a 1,000-block period. A chainsplit occurred, lasting six blocks, as some miners signaled support for BIP66 but had not upgraded and were SPY mining. The new softfork rules chain eventually took the lead.
14 Dec 2015 388,380 BIP65 Check Lock Time Verify enables funds to be locked until a specific time in the future. This is Bitcoin’s first new function. Softfork Successful rollout using a 95% threshold.
4 July 2016 419,328 BIP68，BIP112，BIP113 Relative lock-time enables a transaction output to be banned for a relative amount of time after the transaction.CheckSequenceVerify.Median time-past removes the incentive for a miner to use a future block timestamp to grab more transaction fees. Softfork Successful rollout using 95% versionbits signaling.
23 July 2017 477,800 BIP91 This temporary softfork makes signaling for the SegWit upgrade mandatory. Softfork Softfork successfully activated with an 80% miner threshold over a 336-block period, although only a tiny minority of users enforced BIP91 rules, which have since expired. Therefore, the risk of a chainsplit was elevated in this period.
01 Aug 2017 478,479 BIP148 This temporary softfork makes signaling for the SegWit upgrade mandatory for a two week period following 1 August 2017. Softfork Flag-day softfork appeared to succeed with no issues, although only a minority of users enforced BIP148 rules, which have since expired. Therefore, the risk of a chainsplit was elevated in this period.
24 Aug 2017 481,824 BIP141，BIP143，BIP147 The segregated-witness (SegWit) upgrade. Softfork Rollout using 95% versionbits signaling.