Added that option for you
Well i would say never say never but from my perspective as programmer - there is lot of changes in code since 1.7.10 > quite few developers said they are not going to be developing mods for 1.8.X and rather go for 1.9. hopefuy there would be time before they push 1.10. update or somebody would finalize API that would be able to support mods on never versions without too much trouble. But also lot of mods are dead as developers quit. But let's hope for bright future because we all love mods <3
I understand that a number of developers have decided to walk away rather than update from 1.7 -> 1.8/1.9. Unfortunately, this dilemma occurs at every major code update, as some people just don't have the will, skill, or even simply the free time to update their mod. This is particularly true of larger mods, as that means more code to rewrite, often from scratch (Thaumcraft comes to mind). It's a daunting job, and not all mods make the cut . They will be missed (some people are still pining over the loss of RedPower), but it's the nature of the game.
The good news is, this has happened before, and it led to some really nice mods getting a chance to shine that otherwise would have been sitting on people's back burner at best. When one mod decides not to move on, there are easily a dozen fighting to take its place. Some mods will change hands, as someone who loves it and has the skill will hate to see it die (permissions respected, in most cases). Some open source projects will be forked and take a new turn. Sometimes, a modder will say it's too much work for the trouble at this stage,, then change their tune as the scene stabilizes and doubts are overcome.
Don't panic.
As mentioned above, it seems the next batch of core MC updates are intended to be non-gameshattering for the modding community. This means we may have seemingly rapid updates, but jumping mods from 1.8 up through 1.10+ will be easier than the jump from 1.6 -> 1.7 or 1.7 -> 1.8. if this holds true, the development window we are entering may well be longer than the 1.6 or 1.7 eras, but with the added bonus of new Vanilla updates and features sprinkled in. This also means that Forge may get a chance to upgrade into an even better modding API, seeing as they won't have to rewrite the entire thing for each bump.
In short, don't panic. We'll lose some mods, and more will come to shine. Bittersweet, but so it is. This is cyclical, and when you start to feel overwhelmed, look at how far the modding community has come so far, then realize how much further we can come if given a reasonable timeframe on a stable core. It's going to be OK.