daml start now supports --sandbox-option=opt, --navigator-option=opt and --json-api-option=opt to pass additional option to sandbox/navigator/json-api. These flags can be specified multiple times.
Daml Compiler
Fix a bug where generic templates could crash the compiler.
Security
Fix release signing process.
0.13.26 (not published)
JSON API
/contracts/search now supports a query language for filtering the contracts returned by matching fields. See issue 2778.
Daml Compiler
Fix a bug where .dar files produced by daml build were missing all .daml files except for the one that source pointed to.
Fix a bug where importing the same module from different directories resulted in an error in daml build.
damlc migrate now produces a project that can be built with daml build as opposed to having to use the special build.sh and build.cmd scripts.
Daml Integration Toolkit
30 more test cases have been added to the transaction service test suite.
Security
Starting with this one, releases are now signed on GitHub.