| ⇢ | F | Judge added | |
| ⇢ | A | Core added | |
| ⇢ | A | Crawler added | |
| ⇢ | A | CrawlerBase added | |
| ⇢ | A | Submit added | |
| ⇢ | A | Curl added | |
| F | ↛ | Judge removed | |
| A | ↛ | Crawler removed | |
| A | ↛ | Core removed | |
| A | ↛ | Curl removed | |
| A | ↛ | Submit removed | |
| A | ↛ | CrawlerBase removed |
| ⇢ | F | Judge::__construct() added | |
| ⇢ | B | Judge::get_last_spoj() added | |
| ⇢ | B | Core::__construct() added | |
| ⇢ | B | Crawler::__construct() added | |
| ⇢ | B | CrawlerBase::process_and_get_image() added | |
| ⇢ | B | Judge::get_last_uvalive() added | |
| ⇢ | A | Judge::get_last_codeforces() added | |
| ⇢ | A | Curl::post_data() added | |
| ⇢ | A | Curl::login() added | |
| ⇢ | A | Judge::appendPOJStatus() added | |
| ⋮ | view more | ||
| F | ↛ | Judge::__construct() removed | |
| B | ↛ | Judge::get_last_spoj() removed | |
| B | ↛ | Crawler::__construct() removed | |
| B | ↛ | Core::__construct() removed | |
| B | ↛ | CrawlerBase::process_and_get_image() removed | |
| B | ↛ | Judge::get_last_uvalive() removed | |
| A | ↛ | Judge::get_last_codeforces() removed | |
| A | ↛ | Curl::post_data() removed | |
| A | ↛ | Curl::login() removed | |
| A | ↛ | Judge::appendPOJStatus() removed | |
| ⋮ | view more | ||