A suggestion to HOLD YOUR RANCOR, everyone.
There are a significant number of posts suggesting that those of us who have HW2.0 vehicles - I am included in that - will not be receiving the newly-announced Sentry & Doggy modes. The rancor extends to "Elon l*es", etc.
We do not yet know one way or the other if this is so. We do not know whether there are workarounds that either involve further using the 2.0 platform, whether the upgrade to 2.5 or 3.0 will be provided to 2.0 owners, whether such will or will not be made available to those who prepurchased the FSD option...
...none of this is known. I strongly suspect we will know more before the end of March.
A little more to consider:
OTA upgrades are great. We have come to expect them. I am one who gets put off when a fun but frivolous upgrade occurs in advance of one with utility: my malamutes would rather receive air conditioning than a picture of a crackling fireplace, for example. BUT WE DIDN'T purchase our vehicles with those features promised as upcoming. Yes, FSD is the great big exception to this - for those of us who purchased it. But there has developed an aura of "This is unfair because I no longer have the bestest Tesla out there!" which is, if you stop and think rationally for a nanosecond, a truly ridiculous mentality; one that is utterly unfair to Tesla.
Mr Musk may - or may not - be culpable in his overeager tweeting (those of you who follow my regularly scheduled programming know I despise Twitter and the culture it has promulgated, but let's leave that aside). Regardless, in all this I am reminded of a giant in another field, now relegated to a back page of history, unfortunately for all.
The greatest of his era and possibly the greatest bullfighter of all time was Manolete. Manuel Loreano Rodríguez Sánchez (1917-1947). He enraptured the crowd with his pasa manoletina, wherein he would stand closer to the bull than anyone before or since has dared, just prior to the kill.
But human nature being human nature and crowds being crowds, they demanded more. More. Always More. As he lay dying from the goring he took just one month after his 30th birthday, he said "But I had nothing more to give. So I gave them my life."
Be careful what you wish for.