Recall: pari-2.6.2 (testing, beta) will be out "real soon now", and is a 
release-candidate for 2.7-stable.

New mathematical features for PARI-2.8 (testing) -> PARI-2.9 (stable)

* Elliptic curves 
 - over number fields
 - descent
 - include ratpoint ?
 - modular equation (Hamish)
 - isogeny matrix
 - modular symbols, merge the kb-modsym2 branch

* Algebraic number theory
 - dynamic nf (confer 'ell'): add new components dynamically as they are
   computed (integer basis, class group/units...)
 - compact S-units and fundamental units.
 - rewrite bnfsunit to compute directly S-units without reducing to
   fundamental units (which may be *much* larger)
 - cyclotomic units / subfields to help bnfinit
 - get rid of bnrinit(,,1): *no* function should need explicit expanded
   generators, implicit descriptions in terms of linear algebra should be
   enough.
 - rnfkummer for composite degrees
 - fix rnfkummer (fix and merge kb-rnfkummer)
 - bnrisgalois
 - polsturm -> Uspensky (merge loic-Uspensky)
 - abstract / generalize ad hoc abelian groups constructions (short exact
   sequences)

 - central simple algebras (Aurel)
 - Fieker-Klueners polgalois algorithm, GAP module using PARI ?

* L-functions (Pascal)
 - Dirichlet character
 - Hecke character
 - L(s,\chi), at least for deg <=2
 - Artin L-functions

* Multiprecision:
 - merge the new-t_REAL branch
 - go through transcendental functions and include rigorous / faster algorithms
 - hooks to optionally link with mpfr / mpc higher lever routines