They received a modification of 81-717M/81-714M, similar refurbishments were also made for Baku and Yerevan metro systems.

Because some of the stations have been operative for over five decades, as well as neglect caused by the lack of funding during the 1990s, most of them require a major facelift and some severe repairs on hydroisolation and structure.

[citation needed] In February 2021, renovation works began to take place at the Gotsiridze station, and were scheduled to be completed within 3 months.

[4] Some of the older expansion plans had the concept of making the line fully circular to encompass Tbilisi Sea from both directions.

In perspective, the line could be extended to further neighbourhoods of Gldani and Samgori districts, which was realized as a concept in more recent plans of the metro system.