| ⇢ | A | IndexStreamException added | 
| ⇢ | A | RenderIndexFileStream::removeOldParts() added | |
| ⇢ | A | RenderIndexFileStream::moveParts() added | |
| ⇢ | A | IndexStreamException::failedRename() added | |
| ⇢ | A | FileAccessException::notReadable() added | |
| ⇢ | A | FileAccessException::failedOverwrite() added |