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# MapCache Version 1.4 Announcement

Authors

  Project Steering Committee

Released

  2015-07-28

The MapServer Team is pleased to announce the release of MapCache 1.4

This 1.4 release brings a number of major new features that are summarized in this document.

- REST Caches

  - Amazon S3 REST Caches

  - Microsoft Azure REST Caches

  - Google Cloud Storage REST Caches

- Meta Caches

  - Composite Caches

  - Fallback Caches

  - Multitier Caches

- Sqlite caches now support custom schemas, and database files can be organized to e.g. contain a single tileset or grid, and can be configured to distribute tiles across multiple database files: SQLite Caches.

- Riak Caches

- Proxying Unsupported Requests now supports POST requests (apache module only)

- Locks used for synchronizing mapcache instances can now be stored in memcache, and have a configurable timeout to prevent deadlocks in case of killed instances: Locking Mechanisms

- WMS GetMap requests may now override the default image format: GetMap Image Format

- Intermediate/Hidden grid levels can be used to create higher quality resampled GetMap images, at the cost of higher tile storage (à la MapProxy’s sqrt2 tiles): tileset->use_wms_intermediate_resolution

- Support for worldwind layout of disk stored tiles

- Forward headers to backend WMS servers: Source

- Seeder can log failed seeded tiles, and can replay previously logged failed tiles.

The MapServer Team