2.0.22

• SSH2: backport setPreferredAlgorithms() / getAlgorithmsNegotiated (#1156)
• SSH2 / SFTP: fix issues with ping() (#1402)
• X509: IPs in nameconstraints extension include netmask (#1387)
• X509: fix issue with explicit time tags whose maps expect implicit (#1388)
• BigInteger: fix bug with toBytes() with fixed precision negative numbers
• fix PHP 7.4 deprecations

1.0.17

• SSH2: backport setPreferredAlgorithms() / getAlgorithmsNegotiated (#1156)
• SSH2 / SFTP: fix issues with ping() (#1402)
• SSH2: only auto close the channel for exec() timeouts (#1384)
• SSH2 / SFTP: fix issues with ping() (#1402)
• SFTP: add progress callback to get() (#1375)
• SFTP: fix array_merge(): Argument 1 is not an array error (#1379)
• X509: IPs in nameconstraints extension include netmask (#1387)
• X509: fix issue with explicit time tags whose maps expect implicit (#1388)
• BigInteger: fix issues with divide method
• BigInteger: fix bug with toBytes() with fixed precision negative numbers
• fix PHP 7.4 deprecations

2.0.21

• SSH2: only auto close the channel for exec() timeouts (#1384)

2.0.20

• BigInteger: lower PHP req back down to PHP 5.3.3 (#1382)

2.0.19

• BigInteger: fix issues with divide method

2.0.18

• SSH2: close channel when a timeout occurs (#1378)
• SFTP: improve handling of malformed packets (#1371)
• RSA: add support for OpenSSH private keys (#1372)

1.0.16

• BigInteger: new BigInteger('-0') caused issues with GMP
• BigInteger: new BigInteger('00') caused issues with GMP
• BigInteger: GMP engine didn't always return 1 or -1
• ASN1: revamp how OIDs are handled (#1367)
• ASN1: correctly handle long tags
• SSH2: fix issue with reconnecting via ping() (#1353)
• SSH2: close channel when a timeout occurs (#1378)
• SFTP: improve handling of malformed packets (#1371)
• RSA: add support for OpenSSH private keys (#1372)
• RSA: use hash_equals if available

2.0.17

• BigInteger: new BigInteger('-0') caused issues with GMP

2.0.16

• BigInteger: new BigInteger('00') caused issues with GMP
• BigInteger: GMP engine didn't always return 1 or -1
• ASN1: revamp how OIDs are handled (#1367)
• ASN1: correctly handle long tags
• SSH2: fix issue with reconnecting via ping() (#1353)
• RSA: use hash_equals if available

2.0.15

• SFTP: make it so get() can correctly handle out of order responses (#1343)
• Crypt: avoid bogus IV errors in ECB mode with OpenSSL (#1087)
• RSA: protect against possible timing attack during OAEP decryption
• RSA: fix possible memory leak with XML keys (#1346)
• Hash: fix issue with undefined constants (#1347)
• Hash: fix issues with the mode
• SCP: issue error if remote_file is empty in put() call (#1335)
• X509: whitelist OID 1.3.6.1.4.1.11129.2.4.2 (#1341)