Work on upgrading the highway to modern standards began in 1996, starting with the full rebuilding of Oder bridges. The first 22 km from the German border to the junction with national road 10 have been reconstructed from 1996 to 1999 and from 2005 to 2007. The eastern 6.5 km were reconstructed and then officially redesignated as A6 in 2012 to 2014 and 2017 to 2020.
Highway modernization efforts commenced in 1996, initially focusing on rebuilding Oder bridges. The initial 22 km stretch from the German border to the junction with national road 10 was reconstructed between 1996 and 1999, followed by a second phase from 2005 to 2007.  The eastern 6.5 km were subsequently redesigned as A6 between 2012 and 2014, and again from 2017 to 2020.