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Diffstat (limited to 'doc/news/version_6.20170228.mdwn')
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diff --git a/doc/news/version_6.20170228.mdwn b/doc/news/version_6.20170228.mdwn new file mode 100644 index 000000000..7318d0a7a --- /dev/null +++ b/doc/news/version_6.20170228.mdwn @@ -0,0 +1,67 @@ +News for git-annex 6.20170228: + + This version of git-annex has mitigations for SHA1 hash collision + problems. + A new annex.securehashesonly configuration, when used in combination with + signed git commits, avoids potential hash collision problems in git-annex + repositories. For details, see this web page: + <https://git-annex.branchable.com/tips/using\_signed\_git\_commits/> + +git-annex 6.20170228 released with [[!toggle text="these changes"]] +[[!toggleable text=""" + * Cryptographically secure hashes can be forced to be used in a + repository, by setting annex.securehashesonly. + This does not prevent the git repository from containing links + to insecure hashes, but it does prevent the content of such files + from being added to .git/annex/objects by any method. + * Tighten key parser to prevent SHA1 collision attacks generating + two keys that have the same SHA1. (Only done for keys that contain + a hash). This ensures that signed git commits of annexed files + will remain secure, as long as git-annex is using a secure hashing + backend. + * fsck: Warn about any files whose content is present, that don't + use secure hashes, when annex.securehashesonly is set. + * init: When annex.securehashesonly has been set with git-annex config, + copy that value to the annex.securehashesonly git config. + * Added --securehash option to match files using a secure hash function, + and corresponding securehash preferred content expression. + * sync, merge: Fail when the current branch has no commits yet, instead + of not merging in anything from remotes and appearing to succeed. + * Run ssh with -n whenever input is not being piped into it, + to avoid it consuming stdin that it shouldn't. + This fixes git-annex-checkpresentkey --batch remote, + which didn't output results for all keys passed into it. Other + git-annex commands that communicate with a remote over ssh may also + have been consuming stdin that they shouldn't have, which could have + impacted using them in eg, shell scripts. + * sync: Improve integration with receive.denyCurrentBranch=updateInstead, + displaying error messages from the remote then it fails to update + its checked out branch. + * Added post-recieve hook, which makes updateInstead work with direct + mode and adjusted branches. + * init: Set up the post-receive hook. + * sync: When syncing with a local repository located on a crippled + filesystem, run the post-receive hook there, since it wouldn't get run + otherwise. This makes pushing to repos on FAT-formatted removable + drives update them when receive.denyCurrentBranch=updateInstead. + * config group groupwanted numcopies schedule wanted required: + Avoid displaying extraneous messages about repository auto-init, + git-annex branch merging, etc, when being used to get information. + * adjust: Fix behavior when used in a repository that contains + submodules. + * Run wget with -nv instead of -q, so it will display HTTP errors. + * Run curl with -S, so HTTP errors are displayed, even when + it's otherwise silent. + * When downloading in --json or --quiet mode, use curl in preference + to wget, since curl is able to display only errors to stderr, unlike + wget. + * status: Pass --ignore-submodules=when option on to git status. + * config --set: As well as setting value in git-annex branch, + set local gitconfig. This is needed especially for + annex.securehashesonly, which is read only from local gitconfig and not + the git-annex branch. + * Removed support for building with the old cryptohash library. + Building with that library made git-annex not support SHA3; it's time + for that to always be supported in case SHA2 dominoes. + * git-annex.cabal: Make crypto-api a dependency even when built w/o + webapp and test suite."""]]
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