v4.1.0

• Update eslint
• Improve type checks: Array.isArray, isRegex
• Replace isRegex/isString/isCallable checks with inlined versions from npm modules
• Note which ES abstract methods are replaceable via es-abstract
• Run travis-ci tests on iojs!

v4.0.6

• Update jscs, uglify-js, add eslint
• es5-sham: fix Object.defineProperty to not check for own properties (#211)
• Fix Array#splice bug in Safari 5 (#284)
• Fix Object.keys issue with boxed primitives with extra properties in older browsers. (#242, #285)

v4.0.5

Same implementation as v4.0.4 and v4.0.3.

v4.0.4

https://github.com/es-shims/es5-shim/blob/v4.0.4/CHANGES