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## 2.14.0

**`(feat):`** Include a usage code example in each endpoint method's PHPDoc block, so IDEs
(PhpStorm, Intelephense) surface an example on hover.

## 2.13.4

**`(fix):`** Global API headers configured with an `env` fallback (e.g. `X-Twilio-Version` with
`env: TWILIO_VERSION`) now fall back to the environment variable in the root client
constructor when the parameter is not passed explicitly. Optional headers never throw
when both the parameter and the environment variable are missing.