IAR Embedded Workbench for Renesas RX version 4.20.1 | 909.0 MB IAR Systems, the future-proof supplier of software tools and services for embedded development, is pleased to announce the availability of IAR Embedded Workbench for Renesas RX 4.20.1 is Complete development toolchain to create smaller, faster, smarter code for all RX devices. Release notes for IAR Embedded Workbench for Renesas RX version 4.20.1 Highlights MISRA C:2012 Amendment 1 The static analysis tool C-STAT has extended its coverage of the MISRA C:2012 Coding Standard and now fully supports MISRA C:2012 Amendment 1. This amendment adds 14 additional rules to MISRA C:2012 with a focus on security concerns highlighted by the ISO C Secure Guidelines. Several of these address specific issues pertaining to the use of untrustworthy data, a well-known security vulnerability.