v0.16.0

[0.16.0] - 2025-12-23

Bug Fixes

• (server) Clean up checkpoints and reminder tasks (#1897)
• (server) Reject invalid rpc SearchUserTaskRun (#1901)
• (server) Fix issues from 0.15.0-RC2 (#1900)
• (server) Dodge tombstones on rehydration (#1902)
• (server) Properly handle case when task is already claimed (#1903)
• (server) Default to JSON_OBJ when typeDef defined case is not set (#1905)
• (server) Handle child wfrun in SleepNodeMaturedModel (#1908)
• Improve littlehorse test container class (#1907)
• (server) Fix e2e tests on java 25 (#1919)
• (server) Allow searching indexed json fields (#1923)
• (server) Properly map rocksdb log level (#1926)
• (sdk-java) Close PollThread when receiving any exception during processing (#1928)
• (server) Limit the amount of bytes for each record in the core store (#1934)
• (examples) Fix Python hierarchical workflow example and rename for clarity (#1942)
• (dashboard) Revert changes to wfRunId utils (#1943)
• (server) Support struct comparison in server (#1946)
• (sdk-java) Use the value field for LHStructDef annotation name (#1947)
• (server) Check that StructDef exists on PutWfSpecRequest (#1951)
• (server) Serialize checkpoints in output topic (#1966)
• (server) Fix compilation errors after removing LHTimer storeable type (#1967)
• (dashboard) Remove outdated node details presentation. (#1976)
• (server) Break tight wfspec loops to avoid stackoverflow error (#1971)
• (server) Remove structdef feature flag (#1965)
• (server) Update task worker inactivity threshold server-side (#1985)
• (dashboard) Tenant selection (#1988)
• (server) Update ACL restrictions on GetScheduledWfRun endpoint (#1994)
• (server) Proper keys on metadata output topic to support compaction (#1969)
• (server) Improve how node outputs are retrieved (#1975)
• (dashboard) Remove duplicate variable 'access level' display (#1958)
• (sdk-java) Fix StructDef default values not being set (#1991)
• (server) Reduce default producer request size (#1960)
• (pipeline) Upgrade java version for publish-java-server action (#2004)

Features

• (dashboard) Support LHPath when displaying variable names (#1899)
• (dashboard) Struct def page & support (#1885)
• (dashboard) Sidebar node view (#1911)
• (server) Allow rocksdb config to limit all io or only writes (#1927)
• (dashboard) Add child workflow node in spec and run wf (#1932)
• (fix) Fix finishing date when it not done yet (#1939)
• (lhctl) Allow configuring output topic for a tenant (#1945)
• (dashboard) Add task node run to the sidebard (#1950)
• (server) Add gson configuration to serialize/deserialize nulls (#1956)
• (dashboard) Fix attempt selection and show result on a modal (#1968)
• (dashboard) Add user task node run information to the sidebard (#1959)
• (dashboard) Add throw event node information to the sidebard (#1974)
• (sdk-java) Add checkpoint context log method (#1981)
• (fix) Improve how to show cycle conditions (#1980)
• (server) Validate WfSpec Comparator support at PutWfSpecRequest time (#1986)
• (sdk-dotnet) Add WorkflowThread#complete with return data (#2000)
• (sdk-dotnet) Add RunWf and WaitForChildWf to WfSpec SDK (#1997)
• (server) Add descriptions to TaskDefs (#1990)
• (sdk-python) Add RunWf and WaitForChildWf to WfSpec SDK (#2001)
• (sdk-java) Add description to LHTaskMethod annotation (#1989)
• (dashboard) Checkpoint task proto display (#1977)

Miscellaneous Tasks

• (release) Add prerelease handling (#1893)
• (release) Fix java and python publish (#1894)
• (release) Fix workflow conditionals (#1895)
• (prerelease) Close sonatype artifacts (#1896)
• (server) Upgrades to JDK 25 (#1909)
• (examples) Add spotless apply to all examples (#1915)
• (server) Change base image to AL2023 (#1917)
• (examples) Update java examples to use declare var methods (#1916)
• (sdk-java) Fix flaky test for PollThreadTest (#1938)
• (server) Upgrade to kafka 4.1.1 and fix issue with multiple StreamThreads (#1952)
• Move clients to apache license (#1970)
• (sdk-python,sdk-java,sdk-dotnet) Increase heartbeat interval (#1984)
• (lhctl) Upgrades Go version for lhctl (#1995)
• (lhctl) Format go module and sum files (#2002)

Performance

• (server) Speedup rocksdb open (#1904)
• (server) Universal compaction and throttle restore consumer (#1918)
• (rocksdb) Revert to default space amplification to reduce WA (#1921)
• (server) Allow safe deletion of massive WfRun's (#1924)
• (server) Put getables for a single wfrun under same prefix (#1842)

Refactor

• (server) Clean up taskqueue infrastructure (#1912)

Build

• (deps) Bump golang.org/x/crypto from 0.36.0 to 0.45.0 (#1983)
• (deps) Bump urllib3 from 2.5.0 to 2.6.0 in /sdk-python (#1982)