verlängeres
Verlängeres is not a standard, dictionary-listed term in contemporary German. In most contexts it would be seen as either a misspelling or a nonstandard/rare usage. The closest established concepts are Verlängerung, meaning extension or lengthening, and various forms of adjectival phrases built from verlängern (to extend): for example, verlängerte Fassung or verlängerte Version, which are used to describe an extended edition or version of something.
Linguistic notes and usage patterns suggest that if verlängeres appears in a text, it is likely either
In practice, German speakers would typically avoid Verlängeres and choose clearer alternatives such as Verlängerung for
See also: Verlängerung, verlängern, verlängerte Fassung, extended version.