After fresh install (because incremental upgrade keep restarting machine after reboot) I was not able connect to ssh host using private key to sshd servers as in previous installation or anywhere else.
ssh-add ~/.ssh/my.openssl.ppk
ssl-add -l
**1024** SHA256:dfjhljlkjlkjlkuyhfuyfd /home/my/.ssh/my.openssl.ppk (RSA)
2048 SHA256:fdkhlhdshgdaasdfg my@mypc (RSA)
ssh -vvv bitbucket
debug1: Host 'bitbucket.com' is known and matches the RSA host key.
debug1: Found key in /home/my/.ssh/known_hosts:34
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
**debug1: pubkey_prepare: ignoring ssh-rsa agent key: Invalid key length**
debug1: Will attempt key: /home/my/.ssh/id_rsa RSA SHA256:fdkhlhdshgdaasdfg agent
debug1: Will attempt key: /home/my/.ssh/id_dsa
debug1: Will attempt key: /home/my/.ssh/id_ecdsa
debug1: Will attempt key: /home/my/.ssh/id_ecdsa_sk
debug1: Will attempt key: /home/my/.ssh/id_ed25519
debug1: Will attempt key: /home/my/.ssh/id_ed25519_sk
debug1: Will attempt key: /home/my/.ssh/id_xmss
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ssh-rsa,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,rsa-sha2-512>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/my/.ssh/id_rsa RSA SHA256:fdkhlhdshgdaasdfg agent
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/my/.ssh/id_dsa
debug1: Trying private key: /home/my/.ssh/id_ecdsa
debug1: Trying private key: /home/my/.ssh/id_ecdsa_sk
debug1: Trying private key: /home/my/.ssh/id_ed25519
debug1: Trying private key: /home/my/.ssh/id_ed25519_sk
debug1: Trying private key: /home/my/.ssh/id_xmss
debug1: No more authentication methods to try.
git@bitbucket.com: Permission denied (publickey).
Issue is probably increased minimal RSA key length above 1024 in distro so ssh almost silently refuses to login.
Solution is to create new key pair and register public key in remote ssh server in ~/.ssh/authorized_keys again.
ssh-keygen -t rsa -b 4096
ssh-add etc.