Tuesday, January 13, 2015

Litecoin v0.8.7.5

Follow the Google+ page or Twitter for the latest dev news.

Summary
This is a critical update for the openssl compatibility issue as documented for Bitcoin by gmaxwell.  If you build Litecoin from source you MUST upgrade to Litecoin v0.8.7.5 because your operating system's openssl has become incompatible in a security update for CVE-2014-8275.  This is especially important for Linux users and mining pools who built from source.

Technical Changelog
  • v0.8.7.5

    • Critical: Maintain consensus with openssl-1.0.1k+ or CVE-2014-8275.
    • If you are running the v0.8.7.4 binaries from litecoin.org you do not need to upgrade as that contained an older version of openssl before the consensus breaking change in openssl-1.0.1k.  v0.8.7.5 was released primarily to remove all confusion about what version is safe to operate.

  • v0.8.7.4
    • Enforce v2 blocks at height 710000 on mainnet, 400000 on testnet
      • All miners must upgrade prior to this point or they run the risk of losing future block rewards.
    • Add `-maxorphantx=<n>` option for control over the maximum orphan transactions and blocks
    • Don't poll showmyip.com, it doesn't exist anymore

      BACKUP YOUR WALLET.DAT BEFORE UPGRADING

      https://litecoin.info/Data_directory
      Follow the directions on this page to find the location of your wallet.dat.  Make a backup copy before you upgrade.  This is the only file you need to recover if anything goes wrong.

      Download Binaries
      Warning: Please use GPG to verify the integrity of the binary downloads.  Linux, MacOS or Win32 cygwin command line GPG instructions are available here.  The community wrote a Windows GPG4Win guide with screenshots which is available here.  All builds are signed by the team GPG key C37E4723969276F5.  The exact binaries for Linux and Win32 are reproducible with Gitian.
      Discuss Litecoin 0.8.7.5 in this forum thread.

      Wednesday, September 17, 2014

      Litecoin v0.8.7.4

      Follow the Google+ page or Twitter for the latest dev news.

      Summary
      This is an important update corresponding with Bitcoin v0.9.3.  Everyone is strongly advised to upgrade.  Miners must upgrade to v0.8.7.4+ which enforces block version 2 by height710k or risk having their blocks discarded.

      Technical Changelog
      • v0.8.7.4
        • Enforce v2 blocks at height 710000 on mainnet, 400000 on testnet
          • All miners must upgrade prior to this point or they run the risk of losing future block rewards.
        • Add `-maxorphantx=<n>` option for control over the maximum orphan transactions and blocks
        • Don't poll showmyip.com, it doesn't exist anymore
      • v0.8.7.2
        • Mac and Windows Official Gitian Builds: upgrade to openssl-1.0.1h for CVE-2014-0224
          • Linux Gitian build uses Lucid 0.9.8k-7ubuntu8.18
      • v0.8.7.1
        • Mac and Windows: upgrade to openssl-1.0.1g for CVE-2014-0160 
          • All past Linux binaries were not vulnerable due to Lucid's openssl-0.9.8k. 
        • Upgrade openssl, qt, miniupnpc, zlib, libpng, qrencode.
        • Many bug fixes from Bitcoin 0.8.7rc stable branch including transaction malleability mitigation backports from 0.9.
          • Add testnet checkpoints.
          • Add new testnet seed.
        • v0.8.6.2
          • Windows only: Fixes issue where network connectivity can fail.
          • Minor fixes:
            • Display Litecoin instead of Bitcoin in the Coin Control change address dialog
            • Fix custom build on MacOS X 10.9
            • Fix QT5 custom build
            • Update Debian build instructions
            • Update Homebrew build 
            • Cleanup of SSE2 scrypt detection.

            BACKUP YOUR WALLET.DAT BEFORE UPGRADING

            https://litecoin.info/Data_directory
            Follow the directions on this page to find the location of your wallet.dat.  Make a backup copy before you upgrade.  This is the only file you need to recover if anything goes wrong.

            Download Binaries
            Warning: Please use GPG to verify the integrity of the binary downloads.  Linux, MacOS or Win32 cygwin command line GPG instructions are available here.  The community wrote a Windows GPG4Win guide with screenshots which is available here.  All builds are signed by the team GPG key C37E4723969276F5.  The exact binaries for Linux and Win32 are reproducible with Gitian.
            Discuss Litecoin 0.8.7.4 in this forum thread.

            Monday, July 14, 2014

            Litecoin Logo version 3

            We are near completion of version 3 of the Litecoin Logo.  The logo itself is finalized however we could use feedback on improving the font used in the title and merchant "Accepted Here" buttons.

            Completed
            http://ltc.133.io/?page_id=19
            There are three vector templates from which you can generate the Litecoin Logo v3 depending on the desired size.  The full sized vector is intended for 100px and larger.  The icon vector is intended for 32px through 100px.  The favicon vector is intended for 16px through 50px.

            http://ltc.133.io/?page_id=21
            The favicon went through several iterations before we settled on ico5 which is in use as the actual favicon of ltc.133.io.

            http://ltc.133.io/?page_id=23
            The splash is ready for Litecoin v0.9.x.

            Needs Work
            http://ltc.133.io/?page_id=106
            The Title graphic needs work.  Note the below variant text is the same as this title by dballing which manually edited the L.  We are not entirely pleased with the font "Ubuntu" and we would like to see variations using this logo with different typography.

            http://ltc.133.io/?page_id=25
            Similarly the font in the merchant buttons could be improved.  The .ai file is provided so others can easily modify it in vector graphic software like Adobe Illustrator or Inkscape.

            Please post ideas to improve the Title and Merchant graphics and typography in this thread.

            Wednesday, June 18, 2014

            Litecoin v0.8.7.2 Release Notes

            Follow the Google+ page or Twitter for the latest dev news.

            Summary
            This is a minor update for openssl CVE-2014-0224.  Generally users of v0.8.7.1 do not need to upgrade to v0.8.7.2 unless they are using RPC SSL, a feature that is disabled by default and rarely used.

            Technical Changelog
            • v0.8.7.2
              • Mac and Windows Official Gitian Builds: upgrade to openssl-1.0.1h for CVE-2014-0224
                • Linux Gitian build uses Lucid 0.9.8k-7ubuntu8.18
            • v0.8.7.1
              • Mac and Windows: upgrade to openssl-1.0.1g for CVE-2014-0160 
                • All past Linux binaries were not vulnerable due to Lucid's openssl-0.9.8k. 
              • Upgrade openssl, qt, miniupnpc, zlib, libpng, qrencode.
              • Many bug fixes from Bitcoin 0.8.7rc stable branch including transaction malleability mitigation backports from 0.9.
                • Add testnet checkpoints.
                • Add new testnet seed.
              • v0.8.6.2
                • Windows only: Fixes issue where network connectivity can fail.
                • Minor fixes:
                  • Display Litecoin instead of Bitcoin in the Coin Control change address dialog
                  • Fix custom build on MacOS X 10.9
                  • Fix QT5 custom build
                  • Update Debian build instructions
                  • Update Homebrew build 
                  • Cleanup of SSE2 scrypt detection.

                  BACKUP YOUR WALLET.DAT BEFORE UPGRADING

                  https://litecoin.info/Data_directory
                  Follow the directions on this page to find the location of your wallet.dat.  Make a backup copy before you upgrade.  This is the only file you need to recover if anything goes wrong.

                  Download Binaries
                  Warning: Please use GPG to verify the integrity of the binary downloads.  Linux, MacOS or Win32 cygwin command line GPG instructions are available here.  The community wrote a Windows GPG4Win guide with screenshots which is available here.  All builds are signed by the team GPG key C37E4723969276F5.  The exact binaries for Linux and Win32 are reproducible with Gitian.
                  Discuss Litecoin 0.8.7.2 in this forum thread.

                  Support Litecoin Development
                  If you appreciate our work, please consider making a small donation to the Litecoin Dev Fundraiser.  It takes a considerable amount of effort to guard against mistakes while working on this software.  We also use funds to cover regular expenses like server infrastructure, hire a professional security auditor and other contractors, to pay a law firm to protect the project, and to produce an upcoming educational video about Litecoin.  Businesses may be interested in getting their name listed in the sponsor list.

                  Monday, April 21, 2014

                  Litecoin v0.8.7.1 Release Notes

                  Follow the Google+ page or Twitter for the latest dev news.

                  Summary
                  This release contains a large quantity of minor bug fixes from Bitcoin 0.9 in addition to major fixes like mitigation of transaction malleability and the OpenSSL transaction malleability issue.  All users of Litecoin-Qt or litecoind must upgrade.

                  Note: Prior versions of Litecoin was mostly immune to the so called openssl "Heartbleed" issue except in the rare case where RPC SSL was enabled.

                  Technical Changelog
                  • v0.8.7.1
                    • Mac and Windows: upgrade to openssl-1.0.1g for CVE-2014-0160 
                      • All past Linux binaries were not vulnerable due to Lucid's openssl-0.9.8k. 
                    • Upgrade openssl, qt, miniupnpc, zlib, libpng, qrencode.
                    • Many bug fixes from Bitcoin 0.8.7rc stable branch including transaction malleability mitigation backports from 0.9.
                    • Add testnet checkpoints.
                    • Add new testnet seed.
                  • v0.8.6.2
                    • Windows only: Fixes issue where network connectivity can fail.
                    • Minor fixes:
                      • Display Litecoin instead of Bitcoin in the Coin Control change address dialog
                      • Fix custom build on MacOS X 10.9
                      • Fix QT5 custom build
                      • Update Debian build instructions
                      • Update Homebrew build 
                      • Cleanup of SSE2 scrypt detection.

                    BACKUP YOUR WALLET.DAT BEFORE UPGRADING

                    https://litecoin.info/Data_directory
                    Follow the directions on this page to find the location of your wallet.dat.  Make a backup copy before you upgrade.  This is the only file you need to recover if anything goes wrong.

                    Download Binaries
                    Warning: Please use GPG to verify the integrity of the binary downloads.  Linux, MacOS or Win32 cygwin command line GPG instructions are available here.  The community wrote a Windows GPG4Win guide with screenshots which is available here.  All builds are signed by the team GPG key C37E4723969276F5.  The exact binaries for Linux and Win32 are reproducible with Gitian.
                    Discuss Litecoin 0.8.7.1 in this forum thread.

                    Support Litecoin Development
                    If you appreciate our work, please consider making a small donation to the Litecoin Dev Fundraiser.  It takes a considerable amount of effort to guard against mistakes while working on this software.  We also use funds to cover regular expenses like server infrastructure, hire a professional security auditor and other contractors, to pay a law firm to protect the project, and to produce an upcoming educational video about Litecoin.  Businesses may be interested in getting their name listed in the sponsor list.

                    Saturday, January 11, 2014

                    Litecoin 0.8.6.2 Release Notes

                    Follow the Google+ page or Twitter for the latest dev news.

                    Summary
                    v0.8.6.2 is a very important bug fix update for Windows users.  v0.8.6.1 win32 builds contained a problematic version of the boost library that would occasionally cause all network activity to fail until the client is restarted.  This annoyance was solved with an upgrade to boost-1.55 for the win32 builds.  Linux and Mac users are encouraged to upgrade too mainly as it helps the network to better differentiate peers by version number.

                    p2pool users must upgrade to version 13.4+.

                    Technical Changelog
                    • v0.8.6.2
                      • Windows only: Fixes issue where network connectivity can fail.
                      • Minor fixes:
                        • Display Litecoin instead of Bitcoin in the Coin Control change address dialog
                        • Fix custom build on MacOS X 10.9
                        • Fix QT5 custom build
                        • Update Debian build instructions
                        • Update Homebrew build 
                        • Cleanup of SSE2 scrypt detection.
                    • v0.8.6.1
                      • Bitcoin 0.8.6 Fixes
                        • Fixed rare issue involving relay of invalid transactions.
                          • Fixed rare MacOS X crash during GUI send.
                            • Fixed the MacOS X leveldb corruption issue.
                            • More informative debug.log messages about peers and messages.
                            • Timestamps enabled by default in debug.log.
                            • Litecoin Changes
                              • Default mintxfee reduced by 20x to 0.001 LTC per kilobyte.
                            • Dust thresholds reduced by 10x.
                            • More fairness: High priority area reduced to 17KB per block.  High priority tx size limit reduced to 5KB.  See notes in commits to learn more.
                            • Coin Control 0.8.5
                            • SSE2 PoW validation 
                            • Disable Wallet Mode
                              • Optional advanced feature for relay-only or mining nodes where a wallet is not required.  Operating litecoind with disablewallet saves between 40-200MB of RAM.
                              • Disconnect nodes older than protocol version 70002 (Litecoin 0.8.3.7)
                                • Disallow connections from clients that are a dangerously old.  Along with the alerts this is to encourage those users to upgrade their client to better protect both themselves and the entire network.
                              • Add verifychain and getbestblockhash
                              • Fix MacOS X dock icon menu.

                              BACKUP YOUR WALLET.DAT BEFORE UPGRADING

                              https://litecoin.info/Data_directory
                              Follow the directions on this page to find the location of your wallet.dat.  Make a backup copy before you upgrade.  This is the only file you need to recover if anything goes wrong.

                              Download Binaries
                              Warning: Please use GPG to verify the integrity of the binary downloads.  Linux, MacOS or Win32 cygwin command line GPG instructions are available here.  The community wrote a Windows GPG4Win guide with screenshots which is available here.  All builds are signed by the team GPG key C37E4723969276F5.  The exact binaries for Linux and Win32 are reproducible with Gitian.
                              Discuss Litecoin 0.8.6.2 in this forum thread.

                              Support Litecoin Development
                              If you appreciate our work, please consider making a small donation to the Litecoin Dev Fundraiser.  It takes a considerable amount of effort to guard against mistakes while working on this software.  We also use funds to cover regular expenses like server infrastructure, hire a professional security auditor and other contractors, to pay a law firm to protect the project, and to produce an upcoming educational video about Litecoin.  Businesses may be interested in getting their name listed in the sponsor list.

                              Saturday, December 14, 2013

                              Litecoin 0.8.6.1 Release Notes

                              Follow the Google+ page or Twitter for the latest dev news.

                              Summary
                              v0.8.6.1 is Litecoin's biggest release ever with improvements for everyone.  This includes popular wallet features like Coin Control, relay/miner-only Disable Wallet mode, MacOS X block database corruption fix, faster validation, faster propagation, reduced orphans for miners and a 20x reduction in the default mintxfee.

                              p2pool users must upgrade to version 13.4+.

                              Technical Changelog
                              • v0.8.6.1
                                • Bitcoin 0.8.6 Fixes
                                  • Fixed rare issue involving relay of invalid transactions.
                                  • Fixed rare MacOS X crash during GUI send.
                                  • Fixed the MacOS X leveldb corruption issue.
                                  • More informative debug.log messages about peers and messages.
                                  • Timestamps enabled by default in debug.log.
                                • Litecoin Changes
                                  • Default mintxfee reduced by 20x to 0.001 LTC per kilobyte.
                                  • Dust thresholds reduced by 10x.
                                  • More fairness: High priority area reduced to 17KB per block.  High priority tx size limit reduced to 5KB.  See notes in commits to learn more.
                                  • Coin Control 0.8.5
                                  • SSE2 PoW validation 
                                  • Disable Wallet Mode
                                    • Optional advanced feature for relay-only or mining nodes where a wallet is not required.  Operating litecoind with disablewallet saves between 40-200MB of RAM.
                                    • Disconnect nodes older than protocol version 70002 (Litecoin 0.8.3.7)
                                      • Disallow connections from clients that are a dangerously old.  Along with the alerts this is to encourage those users to upgrade their client to better protect both themselves and the entire network.
                                    • Add verifychain and getbestblockhash
                                    • Fix MacOS X dock icon menu.

                                Download Binaries
                                Warning: Please use GPG to verify the integrity of the binary downloads.  Linux, MacOS or Win32 cygwin command line GPG instructions are available here.  The community wrote a Windows GPG4Win guide with screenshots which is available here.  All builds are signed by the team GPG key C37E4723969276F5.  The exact binaries for Linux and Win32 are reproducible with Gitian.
                                Discuss Litecoin 0.8.6.1 in this forum thread.

                                Support Litecoin Development
                                If you appreciate our work, please consider making a small donation to the Litecoin Dev Fundraiser.  It takes a considerable amount of effort to guard against mistakes while working on this software.  We also use funds to cover regular expenses like server infrastructure, hire a professional security auditor and other contractors, to pay a law firm to protect the project, and to produce an upcoming educational video about Litecoin.  Businesses may be interested in getting their name listed in the sponsor list.