A huge program (55 to 95 billions euros) aiming at upgrading all existing reactors in order to run them for 60 or even 80 years was launched and runs:
https://fr.wikipedia.org/wiki/Grand_car%C3%A9nage
Governments also sold reactors to Finland (running project, way over-budget and delay), China (2 reactors, over-budget and delay, and they stayed offline or at low-power for a full year after an incident) and the U.-K. (this is a running project, already late and over-budget).
The sole closed nuclear plant (Fessenheim) was the oldest one, disputed by neighboring nations Germany and Switzerland (all owning stakes in it!) for seismic-related risks. https://en.wikipedia.org/wiki/Fessenheim_Nuclear_Power_Plant...
A new reactor (Flamanville-3, an EPR) was ordered in 2004, work began in 2007 for a delivery in 2012, it is not delivered yet and 6x times over-budget. https://en.wikipedia.org/wiki/Flamanville_Nuclear_Power_Plan...
A huge program (55 to 95 billions euros) aiming at upgrading all existing reactors in order to run them for 60 or even 80 years was launched and runs: https://fr.wikipedia.org/wiki/Grand_car%C3%A9nage
Governments adopted sustained nuclear R&D budgets. See «Graphique 1», French ahead: https://www.ecologie.gouv.fr/energie-recherche-et-developpem...
Governments also sold reactors to Finland (running project, way over-budget and delay), China (2 reactors, over-budget and delay, and they stayed offline or at low-power for a full year after an incident) and the U.-K. (this is a running project, already late and over-budget).