Is there a one-page doc to tell which function now changes to which in OpenSSL3?

[Pei JIA <jp4work@xxxxxxxxx>]

Actually, my question is quite general:
It looks a lot of functions in **OpenSSL1.1.1** is NOW deprecated in **OpenSSL3** .

• Is there a doc to tell which function in  **OpenSSL1.1.1** is NOW changed to which function in **OpenSSL3** ???
• Or any documentation that provides a very simple code snippet to compare the implementation based on **OpenSSL1.1.1** and the implementation using **OpenSSL3** .

```console
error: ‘EVP_PKEY_get1_RSA’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘SSL_CTX_use_RSAPrivateKey’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘RSA_free’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_init’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_set_default’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_load_private_key’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_finish’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_free’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_by_id’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘TLSv1_2_method’ is deprecated: Since OpenSSL 1.1.0 [-Werror=deprecated-declarations]
error: ‘TLSv1_1_method’ is deprecated: Since OpenSSL 1.1.0 [-Werror=deprecated-declarations]
error: ‘TLSv1_method’ is deprecated: Since OpenSSL 1.1.0 [-Werror=deprecated-declarations]
error: ‘ERR_load_BIO_strings’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]
error: ‘ERR_remove_thread_state’ is deprecated: Since OpenSSL 1.1.0 [-Werror=deprecated-declarations]
error: ‘ENGINE_load_builtin_engines’ is deprecated: Since OpenSSL 3.0 [-Werror=deprecated-declarations]

```

--

Pei JIA, Ph.D.

Email: jp4work@xxxxxxxxx

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