VeraCrypt 1.21

Changes between 1.20 and 1.21 (9 July 2017) :
  - All OSes:
     * Fix 1.20 regression crash when running on CPU not supporting extended features.
  Windows:
     * Fix 1.20 regression that caused PIM value stored in favorites to be ignored during mount.
  * Fix 1.20 regression that causes system favorites not to mount in some cases.
     * Fix some cases of "Parameter Incorrect" error during EFI system encryption wizard.
  * Install PDF documents related to EFI system encryption configuration for advanced users;
    - disk_encryption_v1_2.pdf related to EFI hidden OS and full fisk encryption
    - dcs_tpm_owner_02.pdf related to TPM configuration for EFI system encryption.
  FreeBSD:
     * Add support for building on FreeBSD.

Changes between 1.19 and 1.20 (29 June 2017) :

  - All OSes:
     * Use 64-bit optimized assembly implementation of Twofish and Camellia by Jussi Kivilinna.
       - Camellia 2.5 faster when AES-NI supported by CPU. 30% faster without it.
     * Use optimized implementation for SHA-512/SHA256.
       - 33% speedup on 64-bit systems.
     * Deploy local HTML documentation instead of User Guide PDF.
     * Change links in UI from ones on Codeplex to ones hosted at veracrypt.fr
     * Security: build binaries with support for Address Space Layout Randomization (ASLR).

  - Windows:
     * Several fixes and modifications for EFI System Encryption:
       - Fix bug in decryption using EFI Rescue Disk
    - Add support for TPM 1.2 and TPM 2.0 (experimental) through DCS low level configuration.
      - https://dc5.sourceforge.io/docs/dcs_tpm_owner_02.pdf
    - Add Support for EFI full disk encryption and hidden OS using manual procedure (not exposed in UI).
      - https://dc5.sourceforge.io/docs/disk_encryption_v1_2.pdf
     * Enable using Secure Desktop for password entry. Add preferences option and
       command line switch (/secureDesktop) to activate it.
     * Use default mount parameters when mounting multiple favorites with password caching.
     * Enable specifying PRF and TrueCryptMode for favorites.
     * Preliminary driver changes to support EFI hidden OS functionality.
     * Fix Streebog not recognized by /hash command line.
     * Add support for ReFS filesystem on Windows 10 when creating normal volumes
     * Fix high CPU usage when favorite configured to mount with VolumeID on arrival.
     * Use CHM file for User Guide instead of PDF.
     * Fix false warning in case of EFI system encryption about Windows not installed on boot drive.
     * Enhancements to driver handling of various disk IOCTL.
     * Enhancements to EFI bootloader. Add possibility to manually edit EFI configuration file.
     * Driver Security: Use enhanced protection of NX pool under Windows 8 and later.
     * Reduce performance impact of internal check for disconnected network drives.
     * Minor fixes.

  - MacOSX:
     * OSX 10.7 or newer is required to run VeraCrypt.
     * Make VeraCrypt default handler of .hc & .tc files.
     * Add custom VeraCrypt icon to .hc and .tc files in Finder.
     * Check TrueCryptMode in password dialog when opening container file with .tc extension.

  - Linux:
     * Check TrueCryptMode in password dialog when opening container file with .tc extension.
     * Fix executable stack in resulting binary which was caused by crypto assembly files missing the GNU-stack note.