2.4.0.RC2.markdown

2.4.0.RC2 was broken. Please try 2.4.0.RC2-1 instead.

Scalatra Core

• #500 Improve automatic charset detection performance by @takezoe
• #502 Bump minor version of dependencies by @seratch
• #514 Improve request/response stability wthin AsyncResult by @lloydmeta
• #516 Introduce stable request response macro by @dozed

Scalatra Commands

• #510 Fix deprecated APIs in Scalaz's ValidationOps by @xuwei-k

Scalatra Json

• #504 Fix #496 Rendering JNull in a servlet by @seratch
• #512 Fix jackson json initialization issue (NPE) by @dozed

Scalatra Metrics

• #505 Upgrade to metrics-scala-3.5.1 by @rossabaker

Scalatra Specs2

• #508 Updated specs2 to 3.6.+ by @etorreborre