Last major update: 19/05/2015 (added data for 350000-359999)

19 May 2015 * Added all data for 350000-359999
11 February 2015 * Added 2adic data (from Rouse)
29 August 2014 * Updated data for 240000-249999, 250000-259999 (both
   ranges 246400-99 and 252800-99 had been omitted entirely)
12 May 2014 * Added all data for 340000-349999
25 March 2014 * Added all data for 330000-339999
10 January 2014 * Added all galdata for 320000-329999
10 February 2014 * Added all data for 320000-329999
01 January 2014 * Added all galdata for 300000-319999
31 December 2013 * Added all data for 310000-319999
30 December 2013 * Added all data for 300000-309999

06 September 2013 * Added galrep.* files (from Sutherland)

24 January 2013 * Recomputed several allbigsha.* files and shas.html

14 January 2013 * Tidied up release notes
                * Recomputed allbsd.* files < 130000
                * added scripts to recreate shas.html, table.html

22 October 2012 * Added all data for 290000-299999

13 October 2012 * Added all data for 280000-289999

27 September 2012 * Added all data for 270000-279999

26 August 2012 * Added all data for 260000-269999

20 August 2012 * Added all data for 250000-259999

July 2012  * Added all data for 240000-249999

June 2012  * Added all data for 230000-239999

April 2012 * Added alllabels.* files and april2012 notes
           * Added alldegphi files, updated release notes
           * Switch 190096b1/2 since old b2 was optimal; updated release notes
           * For 48 isogeny classes of size 2 between 130k and 230k,
              swapped over curves #1 and #2
           * Added optimality.?? files, extra sections to INDEX and manin.txt
           * Remade allisog.* files for 0-12 to get correct order
             and filled matrices

27/03/12 * Changed all allgens files for non-cyclic torsion groups so
           that the torsion generator orders match the group invariants.

02/03/12 * Added all data for 220000-229999

30/01/12 * Replaced corrupt paricurves.130000-139999

13/01/12 * Added all data for 210000-219999

01/12/11 * Corrected paricurves.180000-189999 (186120bk2 was wrong)

21/11/11 * Added all data for 200000-209999

26/10/11 * Added all data for 190000-199999

15/09/11 * Added all data for 180000-189999
         * Corrected allbsd data for 130725bc and 135346c
           (thanks to R Andrew Ohana)

09/08/11 * Added all data for 170000-179999

26/07/11 * Added all data for 160000-169999

08/07/11 * Added all data for 150000-159999

28/06/11 * Added all data for 140000-149999
         * corrected count.130000-139999 (N=135045 had 0 not 6)

21/04/11 * Updated intpts.130000-139999 (data for 130416 was garbled),
           thanks to Geoff bailey.

15/04/11 * Updated allgens.n0000-n9999 for n in 0..12 to include
	   torsion generators and rank 0 curves.  Updated INDEX to
	   reflect this.

12/04/11 * Corrected paricurves.130000-139999 (deleted extraneous
           Pythonic Ls)
         * Corrected L''(1) and |Sha| for 135014r1

08/04/11 * Added all data for 130000-139999
         * Changed allgens format to include torsion (so there is one
         line in allgens* for each line in allcurves*).
         NB I have not yet recreated the allgens files for N<130000.

05/01/07 * Corrected aplist file entries for bad primes over 100, for
           N divisible by more than one such prime (or by the square
           of such a prime).
	   Files affected: aplist.* (except aplist.00000-09999)

15/12/06 * Corrected Sha(51522f3) from 4 to 9 (thanks to Tom Fisher)
           Files affected: allbigsha.[05]0000-*, allbsd.50000*, shas.html

24/09/06 * Conductors divisible by 216 between 90000 and 99999 were
	   missing, now included.  All files *.90000-99999 affected.

04/09/06 * Saturation of given generators now proved for all curves!

04/09/06 * Corrected generators for 26 curves (52266d1, 124132a1 and
	   24 of conductor 122010) which were unsaturated.  Files
	   affected are allgens.{5,12}*, paricurves.{5,12}* but NOT
	   the allbsd or allbigsha files which are unchanged (they
	   already had the correct regulators).

13/07/06 * Corrected 20 entries in allisog.[0-7]* (curves incorrectly shown
	   as self-isogenous), thanks to Tom Boothby

17/02/06 * Corrected files degphi.1[012]0000-1[012]9999 (wrong codes)
16/02/06 * Corrected files count.40000-49999 and count.60000-69999.

20/11/05 * Updated optimality claims to cover all N<50000

07/11/05 * Minor corrections to {allbsd,allgens,paricurves}.120000-129999

05/11/05 * Added all data for 120000-129999

01/11/05 * Minor corrections to allbigsha* and shas.html

20/09/05 * Minor corrections to files degphi.1[01]0000-1[01]9999,
	   allbsd.[69]*, allgens.9*, allbigsha.9*, shas.html

18/09/05 * Added all data for 100000-119999
	 * allgens files now use new letter codes

02/09/05 * Changed all isogeny class codes to new simplified base-26 scheme:

	 a,b,...,z,ba,bb,...,bz,ca,...

31/08/05 * Added all data for 90000-99999
26/08/05 * Added all data for 80000-89999

14/07/05 * Added all data for 70000-79999

	 * Deleted trailing field " ***!!!***" from allbsd.* for
	   curves where field 11 (=analytic Sha) >1

	 * Added allisog* files ("Table 6") giving isogeny matrix for
           each class

	 * Removed curves.* and gens.*, as they are subsets of the
	   allcurves.* and allgens.* files

20/06/05 * Added all data for 60000-69999.

09/06/05 * Added all data for 50000-59999.
	 * renamed files e.g. curves.00000-09999 etc;  no changes to
           content since no elliptic curves have conductor divisible by 1000.

27/05/05 * Added all data for 40001-50000.

05/05/05 * corrected generators for 14 curves in range 30001-40000
           which were not saturated, with consequent corrections to
           allgens.30001-40000, allbsd.30001-40000,
           allbigsha.30001-40000 and shas table.  (None of these were
           optimal curves so gens.* unchanged)

03/5/05 * corrections to files allgens.30001-40000 gens.20001-30000
			       allgens.20001-30000 gens.30001-40000
			       allbsd.00001-10000 allgens.00001-10000
	  thanks to Geoff Bailey.  (Some duplications, and some wrong
			       numbering of curves in an isogeny class).

26/4/05	  * added curve 25350III2 which had been missed

22/4/05:  * added data for range 30001-40000 (thanks to Nottingham's
         	  multiprocessor GRID)
	  * resorted files into uniform ranges of 10000
	  * only include gzip-ed files

 1/3/05:  added data for N=15299 (one curve) previously omitted

 9/2/05:  added data for range 25001-30000 + certification of optimal
	  curves extended from 8000 to 11000 (extended to 12000 on 13/02/05).
	  Swapped the two curves in classes 15180,15624,15744 as the
	  conditionally optimal one was second not first.

21/6/04:  added data for range 20001-25000 + certification of generators
	  for all curves so far

 9/3/04:  corrections for 15810U3 -- previous generator was
                                     3*generator;  so |Sha|=9 not 1.

 4/4/03:  added data for range 17001-20000.
12/2/03:  added data for range 16001-17000.
17/1/03:  added data for range 15001-16000.

25/10/02:  corrected torsion order for 4830N4 in allcurves.1-8000
	   mention 2 new curves of rank 3 in INDEX file

8/10/02: Added data for the range 12001-15000, with the same status as
for the range 8001-12000 detailed below (except that Mark Watkins has
not -- yet -- covered this range). [He has now: 25/10/02.]

14/1/02: Curves in classes 8160R, 8585C, 11024B reordered.  For these
levels the first curve in each class is guaranteed Gamma_0(N)-optimal.
For other levels up to 12000 where there is no guarantee, our first
curve is the one which has been /conditionally/ proved optimal by Mark
Watkins.  It is now the case that for all levels in the range
8001-12000 the first curve in each class is either proved optimal, or
at least agrees with Mark Watkins's conditional list of optimal
curves.  The former holds whenever the degree of the modular
parametrization is given in the curves file.

12/12/01: for around 10% of classes in the range 8201-9000 the
ordering has been changed.  In the new order the first curve in each
class is more likely (though not guaranteed) to be optimal.  This
change makes this range compatible with the range 9001-12000 in that
the same strategy is used throughout for finding a curve from each
newform.

November 2001:

The tables are extended to level (conductor) 12000.

   For levels up to 8000 fuller data exists, including determination
   of the optimal curve in each isogeny class and the degree of the
   modular parametrization.  The numbering of the curves in each class
   (with the optimal curve #1, except for class 990H) may be taken as
   canonical and standard in this range.

   For levels 8001-12000 we give all curves in each isogeny class, but
   the first curve is not known to be optimal (unless the class only
   contains one curve, of course).  The numbering of the curves in
   each class containing more than one curve should NOT be taken as
   canonical and standard: it will change if the optimal curve turns
   out to be not the currently labelled first curve.  It is likely
   (based on past observation) that, where the first curve in a class
   is not optimal, it is related to the optimal curve by a 2-isogeny.

   In the range 8001-12000 we also do not have the modular degree (in
   most cases).

   For any individual level in the range 8001-12000, it is possible to
   carry out the extra computations needed to fill these gaps
   (determining the optimal curve and modular degree), but doing so
   for all curves in the range would probably take a few months with
   the current algorithms and programs.  An independent computation by
   Mark Watkins <watkins@math.psu.edu> has determined, conditionally
   on the Stevens conjecture, which curve in each class is optimal,
   and has determined its modular degree.  Our results agree for all
   levels up to 8000 and we expect them to agree in the higher range
   also.

17/9/01: Error corrected: added 5104B1 to files, omitted due to an
error discovered while working on 2*5104=10208.  Further checking has
shown that no further omissions were made at around the same time.

(for previous update messages see the files sept2001 etc.)
