• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • gcc
  • mpfr
• Commercial version of MicroC/OS-II is under Apache 2.0 Open-Source Licensing, for more information refer to the Micrium Licensing Webpage.

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Standard Edition:
  • gcc
  • gdb
  • gmp
  • mpfr
  • ncurses
  • newlib

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • binutils
  • gcc
  • gdb

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • gcc
  • gmp
  • ncurses
  • newlib

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • binutils
  • expat
  • gcc
  • gdb
  • mpfr
• Nios® II Toolchain upgrades for Intel® Quartus® Prime Standard Edition:
  • binutils
  • expat
  • gcc
  • gdb
  • mpfr

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • expat

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • expat
• The cloog library is removed from toolchain for the Intel® Quartus® Prime Pro Edition.

• In the Intel® Quartus® Prime Pro Edition, the Windows* version of Nios® II EDS, Cygwin has been removed and replaced with Windows Subsystem for Linux* (WSL).

  For installation instructions, refer to the Installing Windows* Subsystem for Linux* (WSL) on Windows* sections in the Nios® II Software Developer Handbook.

• Known Issue: wslpath: < Nios® II EDS installation directory or Nios® II project directory> No such file or directory
• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • binutils
  • expat
  • gcc
  • gdb
  • isl
  • mpc
  • mpfr
  • ncurses
  • newlib

• You must manually install Eclipse from the Eclipse download page to get the Nios® II development environment running.
  Note: Nios® II Eclipse plug-ins are delivered in Intel® Quartus® Prime with the necessary installer and readme files.

  For installation instructions, refer to the Installing Eclipse IDE into Nios® II EDS section in the Nios® II Software Developer Handbook.

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Standard Edition:
  • binutils
  • expat
  • gcc
  • gdb
  • gmp
  • isl
  • mpc
  • mpfr
  • ncurses
  • newlib
• The cloog library is removed from toolchain for the Intel® Quartus® Prime Standard Edition.
• In the Intel® Quartus® Prime Standard Edition, the Windows* version of Nios® II EDS, Cygwin has been removed and replaced with Windows Subsystem for Linux* (WSL).

  For installation instructions, refer to the Installing Windows* Subsystem for Linux* (WSL) on Windows* sections in the Nios® II Software Developer Handbook.

• Known issue: nios2-elf-gcc.exe: error: CreateProcess: No such file or directory

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • gcc

• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • binutils
  • gcc
  • gdb
  • gmp
  • isl
  • mpfr
  • newlib

• Nios® II Software Build Tools (SBT): Upgrade of Eclipse to v4.5 for Intel® Quartus® Prime Pro Edition and Intel® Quartus® Prime Standard Edition
• New driver for Intel® XWAY PHY11G PEF7071 Ethernet PHY for Intel® Quartus® Prime Pro Edition and Intel® Quartus® Prime Standard Edition
• Nios® II Software Build Tools (SBT): Windows 10 host support in Intel® Quartus® Prime Pro Edition and Intel® Quartus® Prime Standard Edition software
• Nios® II Toolchain upgrades for Intel® Quartus® Prime Pro Edition:
  • binutils
  • expat
  • gcc
  • gdb
  • gmp
  • mpfr
  • newlib
• Bug fix:
  • Issue causing locale to be broken on newlib 2.4.0 when using smallc lib is fixed.

• Nios® II Software Build Tools (SBT)—Windows 10 support added in Intel® Quartus® Prime Pro Edition.

• Nios® II Toolchain upgrades:
  • gcc
  • isl
  • mpc
  • mpfr
• Bug fixes:
  • The handling of the -mgpopt=option setting has been changed. It is now under the full control of the BSP editor and there is a flag for it in the public.mk file.
  • nios2-app-compile no longer fails when -mgpopt is set to "global" and loglevel is set to "-1".

For more information about the GCC releases, refer to the GCC, the GNU Compiler Collection website.