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Add v1.3.0 CHANGELOG ()

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Marko Budiselić 2021-01-26 18:27:23 +01:00 committed by GitHub
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CHANGELOG.md
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## Future
TODO: Don't forget to add items on the fly.
## v1.3.0
### Breaking Changes
* Added extra information in durability files to support replication making
it incompatible with the durability files generated by older versions of
Memgraph. Even though the replication is an Enterprise feature, the files
are compatible with the Community version.
* Added extra information in durability files to support replication, making it
incompatible with the durability files generated by older versions of
Memgraph. Even though the replication is an Enterprise feature, the files are
compatible with the Community version.
### Major Features and Improvements
* Added support for data replication across a cluster of Memgraph instances.
Supported instance types are MAIN and REPLICA. Supported replication modes
are SYNC (all SYNC REPLICAS have to receive data before the MAIN can commit
the transaction), ASYNC (MAIN doesn't care if data is replicated), SYNC WITH
TIMEOUT (MAIN will wait for REPLICAS within the given timeout period, after
timout, replication isn't aborted but the replication demotes the REPLICA to
the ASYNC mode).
* Added support for query type deduction. Possible query types are `r` (read),
`w` (write), `rw` (read-write). The query type is returned as a part of the
summary.
* Improved logging capabilities by introducing granular logging levels. Added
new flag, `--log-level`, which specifies the minimum log level that will be
printed. E.g., it's possible to print incoming queries or Bolt server states.
* Added ability to lock the storage data directory by executing the `LOCK DATA
DIRECTORY;` query which delays the deletion of the files contained in the
data directory. The data directory can be unlocked again by executing the
`UNLOCK DATA DIRECTORY;` query.
### Bug Fixes and Other Changes
* Added cleanup of query executions if not in an explicit transaction.
* Fix RPC dangling reference.
## v1.2.0