Component Change Log

1.1.x series

Version 1.1.0 released on February 26, 2022

Add subsystem (motivated by conversations in #69 and elsewhere)

1.0.x series

Version 1.0.0 released on March 7, 2020

Modify Clojure dependency to be :scope "provided" to prevent spurious warnings when overridden by a later version. Note that this also prevents warnings when overridden by an earlier, incompatible version of Clojure. Component since version 0.3.0 requires Clojure 1.7.0 or later. (commit 5af4ad06; reported by Dave Yarwood in #65).
Update 'dependency' library to version 1.0.0

0.4.x series

Version 0.4.0 released on December 30, 2018

Add :extend-via-metadata to Lifecycle protocol for Clojure 1.10 extend-via-metadata. Backwards-compatible with earlier Clojure versions (commit 7824f551; suggested by Joe Lane in #62).
Not backwards-compatible with ClojureScript versions before ClojureScript 1.10.516 (reported by Ryan Schmukler in #63).

0.3.x series

Version 0.3.2 released on December 12, 2016

Fix incorrect base class for extending Lifecycle (commit 69e62854; reported by Tim Pote)

Version 0.3.1 released on November 28, 2015

Fix incorrect values for ex-data keys in missing-dependency error (reported by Howard Lewis Ship at #40)

Version 0.3.0 release on September 18, 2015

API-compatible with 0.2.x
Minimum Clojure version 1.7.0 for Conditional Read
Added ClojureScript support via Conditional Read

0.2.x series

Version 0.2.3 released on March 3, 2015

More-specific error message when a component returns nil from start or stop (commit fb891500; reported by James Gatannah at #17)

Version 0.2.2 released on September 7, 2014

System maps print as #<SystemMap> to avoid trying to print huge objects in the REPL (reported by Howard Lewis Ship at #9)
Add error helpers ex-component? and ex-without-components
Change :component-key to :system-key in ex-data maps: breaking change for code which depended on the value of :component-key
Add :system-key to ex-data map from try-action
Minor changes to exception message strings
Leiningen profiles / aliases to test on all supported Clojure versions

Version 0.2.1 released on December 17, 2013

Add generic system-map
More descriptive messages on exceptions
Add arity-1 versions of start-system and stop-system that default to all keys in the system

Version 0.2.0 released on November 20, 2013

API compatible with 0.1.0
Some exception messages changed
Added default no-op implementation of Lifecycle protocol
Added update-system and update-system-reverse
Redefined start-system and stop-system in terms of these
stop-system now assoc's dependencies just like start-system

0.1.x series

Version 0.1.0 released on October 28, 2013