Before reaction update:

h1 + h1 -> h2 + neutrino_e + positron  (Data source: NACRE)
h1 + n -> h2 + gamma  (Data source: Smith et al. (1993))
be9 + h1 -> be8 + h2  (Data source: NACRE)

Number of reactions = 3

After reaction update:

h1 + h1 -> h2 + neutrino_e + positron  (Data source: NACRE)
h1 + n -> h2 + gamma  (Data source: Smith et al. (1993))
h3 + o16 -> h2 + o17  (Data source: Made up reaction!)
be9 + h1 -> be8 + h2  (Data source: NACRE)

Number of reactions = 4